{"id":8657,"date":"2023-01-30T23:19:06","date_gmt":"2023-01-30T15:19:06","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=8657"},"modified":"2024-05-05T14:18:33","modified_gmt":"2024-05-05T06:18:33","slug":"%e6%a1%8c%e9%9d%a2%e7%a8%8b%e5%ba%8f%e7%bb%98%e5%9b%be%e7%bc%96%e7%a8%8b%ef%bc%88gdi%ef%bc%89-windows-api-%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=8657","title":{"rendered":"\u684c\u9762\u7a0b\u5e8f\u7ed8\u56fe\u7f16\u7a0b\uff08GDI\uff09 &#8211; Windows API"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.iyatt.com\/?p=8657\/#%E7%8E%AF%E5%A2%83\" >\u73af\u5883<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.iyatt.com\/?p=8657\/#%E5%83%8F%E7%B4%A0%E7%82%B9%E5%8F%8A%E7%AE%80%E5%8D%95%E5%9B%BE%E5%BD%A2%E7%BB%98%E5%88%B6\" >\u50cf\u7d20\u70b9\u53ca\u7b80\u5355\u56fe\u5f62\u7ed8\u5236<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.iyatt.com\/?p=8657\/#%E7%94%BB%E7%AC%94%E5%92%8C%E7%94%BB%E5%88%B7%E7%9A%84%E4%BD%BF%E7%94%A8\" >\u753b\u7b14\u548c\u753b\u5237\u7684\u4f7f\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.iyatt.com\/?p=8657\/#%E4%BD%8D%E5%9B%BE%E7%9A%84%E4%BD%BF%E7%94%A8\" >\u4f4d\u56fe\u7684\u4f7f\u7528<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E7%8E%AF%E5%A2%83\"><\/span>\u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Windows 11 \u4e13\u4e1a\u5de5\u4f5c\u7ad9\u7248 22H2<br \/>\nVisual Studio 2022 \u4e13\u4e1a\u7248<\/p>\n<p>Unicode \u5b57\u7b26\u96c6\uff0cC17 \u6807\u51c6\u7f16\u8bd1\uff0c64 \u4f4d\u7f16\u8bd1<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E5%83%8F%E7%B4%A0%E7%82%B9%E5%8F%8A%E7%AE%80%E5%8D%95%E5%9B%BE%E5%BD%A2%E7%BB%98%E5%88%B6\"><\/span>\u50cf\u7d20\u70b9\u53ca\u7b80\u5355\u56fe\u5f62\u7ed8\u5236<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<pre><code class=\"language-c\">#include &lt;Windows.h&gt;\n\nLRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)\n{\n    switch (msg)\n    {\n        case WM_PAINT:\n        {\n            PAINTSTRUCT ps = {0};\n            HDC hdc = BeginPaint(hWnd, &amp;ps);\n            for (int i = 50; i &lt; 200; ++i) \/\/ \u8fde\u7eed\u7ed8\u5236\u70b9\u6784\u6210\u4e00\u6761\u76f4\u7ebf\n            {\n                \/\/ \u7ed8\u5236\u50cf\u7d20\u70b9\n                \/\/ RGB \u4e09\u8272\u914d\u6bd4\u7684\u53d6\u503c\u8303\u56f4 0~255\n                SetPixel(hdc, i, i, RGB(i + 50, i - 10, i + 50));\n            }\n            \/\/ \u76f4\u7ebf\u7ed8\u5236\n            \/\/ \u7528\u56db\u6761\u7ebf\u9996\u5c3e\u76f8\u8fde\u753b\u4e00\u4e2a\u77e9\u5f62\n            MoveToEx(hdc, 20, 20, NULL); \/\/ \u8d77\u59cb\u4f4d\u7f6e\uff0c\u4e0d\u6307\u5b9a LineTo \u9ed8\u8ba4\u4ece (0,0) \u5f00\u59cb\n            LineTo(hdc, 20, 200);\n            LineTo(hdc, 200, 200); \/\/ \u4e0a\u4e00\u6b21\u7684\u672b\u5c3e\u4f5c\u4e3a\u8d77\u59cb\u70b9\n            LineTo(hdc, 200, 20);\n            LineTo(hdc, 20, 20);\n            \/\/ \u77e9\u5f62\u7ed8\u5236\n            Rectangle(hdc, 30, 30, 240, 100);  \/\/ \u5c01\u95ed\u56fe\u5f62\uff0c\u5185\u90e8\u6709\u586b\u5145\u989c\u8272\uff0c\u9ed8\u8ba4\u767d\u8272\uff0c\u548c\u80cc\u666f\u4e00\u6837\uff0c\u4f1a\u906e\u6321\u524d\u9762\u7ed8\u5236\u7684\u56fe\u6848\u3002\u4e0b\u540c\n            \/\/ \u5706\/\u692d\u5706\u7ed8\u5236\n            Ellipse(hdc, 35, 35, 90, 90); \/\/ \u6307\u5b9a\u5706\u6216\u692d\u5706\u7684\u5916\u63a5\u77e9\u5f62\u7684\u5de6\u4e0a\u89d2\u548c\u53f3\u4e0b\u89d2\u5750\u6807\n            EndPaint(hWnd, &amp;ps);\n            break;\n        }\n        case WM_CLOSE:\n        {\n            DestroyWindow(hWnd);\n            break;\n        }\n        case WM_DESTROY:\n        {\n            PostQuitMessage(0);\n            break;\n        }\n        default:\n        {\n            return DefWindowProc(hWnd, msg, wParam, lParam);\n        }\n    }\n\n    return 0;\n}\n\nint WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPreInstance, _In_ LPWSTR lpCmdLine, _In_ int nCmdShow)\n{\n    PCWSTR szClassName = L&quot;Desktop&quot;;\n    WNDCLASSEX wc = {0};\n    wc.cbSize = sizeof(WNDCLASSEX);\n    wc.lpfnWndProc = WndProc;\n    wc.lpszClassName = szClassName;\n    if (!RegisterClassEx(&amp;wc))\n    {\n        MessageBox(NULL, L&quot;\u6ce8\u518c\u7a97\u53e3\u5931\u8d25!&quot;, L&quot;\u9519\u8bef&quot;, MB_OK);\n        return 1;\n    }\n\n    HWND hWnd = CreateWindowEx(0, szClassName, L&quot;\u7b80\u5355\u7a0b\u5e8f&quot;, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 300, 300, NULL, NULL, hInstance, NULL);\n    if (!hWnd)\n    {\n        MessageBox(NULL, L&quot;\u521b\u5efa\u7a97\u53e3\u5931\u8d25\uff01&quot;, L&quot;\u9519\u8bef&quot;, MB_OK);\n        return 1;\n    }\n\n    ShowWindow(hWnd, nCmdShow);\n    UpdateWindow(hWnd);\n\n    MSG msg = {0};\n    while (GetMessage(&amp;msg, NULL, 0, 0))\n    {\n        DispatchMessage(&amp;msg);\n    }\n\n    return (int)msg.wParam;\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/01\/image-1675087091398.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 286px; --smush-placeholder-aspect-ratio: 286\/293;\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E7%94%BB%E7%AC%94%E5%92%8C%E7%94%BB%E5%88%B7%E7%9A%84%E4%BD%BF%E7%94%A8\"><\/span>\u753b\u7b14\u548c\u753b\u5237\u7684\u4f7f\u7528<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u76f8\u6bd4\u4e8e\u524d\u9762\u7684\u7ed8\u56fe\uff0c\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u753b\u7b14\u7684\u7c97\u7ec6\u4ee5\u53ca\u989c\u8272\uff0c\u53e6\u5916\u8fd8\u6709\u56fe\u5f62\u586b\u5145\u3002<\/p>\n<pre><code class=\"language-c\">#include &lt;Windows.h&gt;\n\nLRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)\n{\n    switch (msg)\n    {\n        case WM_PAINT:\n        {\n            PAINTSTRUCT ps = {0};\n            HDC hdc = BeginPaint(hWnd, &amp;ps);\n            HPEN hPen = CreatePen(PS_SOLID, 3, RGB(255, 0, 0)); \/\/ \u521b\u5efa\u753b\u7b14\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u8bbe\u7f6e\u7ebf\u578b\uff0cPS_SOLID \u662f\u5b9e\u7ebf\uff0c\u6bd4\u5982 PS_DASH \u662f\u865a\u7ebf\uff0c\u8fd8\u6709\u5176\u5b83\u7ebf\u578b\uff0c\u5982\u679c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7ebf\u5bbd\u5927\u4e8e 1\uff0c\u90a3\u4e48\u8fd8\u662f\u4f1a\u53d8\u6210\u5b9e\u7ebf\n            \/\/ \u8fd9\u91cc\u662f\u521b\u5efa\u7eaf\u8272\u7684\u753b\u5237\n            \/\/ \u8fd8\u6709\u53ef\u4ee5\u521b\u5efa\u7eb9\u7406\u7684\u753b\u5237\u7b49\u7b49\uff0c\u51fd\u6570\u540d\u683c\u5f0f\u5927\u6982\u5c31\u662f Create[XXXX]Brush\n            \/\/ \u753b\u5237\u7528\u4e8e\u586b\u5145\n            HBRUSH hBrush = CreateSolidBrush(RGB(0, 0, 255));\n            HGDIOBJ hOldPen = SelectObject(hdc, hPen); \/\/ \u5c06\u753b\u7b14\u5207\u6362\u4e3a\u81ea\u5df1\u521b\u5efa\u7684\uff0c\u5e76\u4fdd\u5b58\u8fd4\u56de\u503c\uff0c\u5373\u9ed8\u8ba4\u753b\u7b14\n            HGDIOBJ hOldBrush = SelectObject(hdc, hBrush); \/\/ \u5c06\u753b\u5237\u5207\u6362\u4e3a\u81ea\u5df1\u521b\u5efa\u7684\uff0c\u5e76\u4fdd\u5b58\u8fd4\u56de\u503c\uff0c\u5373\u9ed8\u8ba4\u753b\u5237\n            Rectangle(hdc, 20, 20, 250, 100); \/\/ \u7ed8\u56fe\n            SelectObject(hdc, hOldPen); \/\/ \u5c06\u753b\u7b14\u91cd\u65b0\u8bbe\u4e3a\u9ed8\u8ba4\u7684\n            SelectObject(hdc, hOldBrush); \/\/ \u5c06\u753b\u5237\u91cd\u65b0\u8bbe\u4e3a\u9ed8\u8ba4\u7684\n            DeleteObject(hPen); \/\/ \u9500\u6bc1\u521b\u5efa\u7684\u753b\u7b14\n            DeleteObject(hBrush); \/\/ \u9500\u6bc1\u521b\u5efa\u7684\u753b\u5237\n            EndPaint(hWnd, &amp;ps);\n            break;\n        }\n        case WM_CLOSE:\n        {\n            DestroyWindow(hWnd);\n            break;\n        }\n        case WM_DESTROY:\n        {\n            PostQuitMessage(0);\n            break;\n        }\n        default:\n        {\n            return DefWindowProc(hWnd, msg, wParam, lParam);\n        }\n    }\n\n    return 0;\n}\n\nint WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPreInstance, _In_ LPWSTR lpCmdLine, _In_ int nCmdShow)\n{\n    PCWSTR szClassName = L&quot;Desktop&quot;;\n    WNDCLASSEX wc = {0};\n    wc.cbSize = sizeof(WNDCLASSEX);\n    wc.lpfnWndProc = WndProc;\n    wc.lpszClassName = szClassName;\n    if (!RegisterClassEx(&amp;wc))\n    {\n        MessageBox(NULL, L&quot;\u6ce8\u518c\u7a97\u53e3\u5931\u8d25!&quot;, L&quot;\u9519\u8bef&quot;, MB_OK);\n        return 1;\n    }\n\n    HWND hWnd = CreateWindowEx(0, szClassName, L&quot;\u7b80\u5355\u7a0b\u5e8f&quot;, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 300, 300, NULL, NULL, hInstance, NULL);\n    if (!hWnd)\n    {\n        MessageBox(NULL, L&quot;\u521b\u5efa\u7a97\u53e3\u5931\u8d25\uff01&quot;, L&quot;\u9519\u8bef&quot;, MB_OK);\n        return 1;\n    }\n\n    ShowWindow(hWnd, nCmdShow);\n    UpdateWindow(hWnd);\n\n    MSG msg = {0};\n    while (GetMessage(&amp;msg, NULL, 0, 0))\n    {\n        DispatchMessage(&amp;msg);\n    }\n\n    return (int)msg.wParam;\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/01\/image-1675088377114.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 286px; --smush-placeholder-aspect-ratio: 286\/293;\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E4%BD%8D%E5%9B%BE%E7%9A%84%E4%BD%BF%E7%94%A8\"><\/span>\u4f4d\u56fe\u7684\u4f7f\u7528<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5148\u521b\u5efa\u4e00\u4e2a\u8d44\u6e90\u6587\u4ef6\uff0c\u518d\u6dfb\u52a0\u4f4d\u56fe\u8d44\u6e90<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/01\/image-1675089764377.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 736px; --smush-placeholder-aspect-ratio: 736\/482;\" \/><br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/01\/image-1675089807674.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 420px; --smush-placeholder-aspect-ratio: 420\/342;\" \/><\/p>\n<p>\u7136\u540e\u53ef\u4ee5\u81ea\u5df1\u7ed8\u5236\u56fe\u6848\uff0c\u5728\u7a7a\u767d\u5904\u53f3\u952e\u5c5e\u6027\u53ef\u4ee5\u8bbe\u7f6e\u4f4d\u56fe\u5927\u5c0f\uff0c\u6211\u8fd9\u91cc\u5c31\u662f\u9ed8\u8ba4\u7684 48&#215;48(\u540e\u9762\u5199\u4ee3\u7801\u8981\u7528)<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/01\/image-1675091599839.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 337px; --smush-placeholder-aspect-ratio: 337\/301;\" \/><br \/>\n\u753b\u5b8c Ctrl+S \u4fdd\u5b58\u4e00\u4e0b\uff0c\u5f00\u59cb\u64b8\u4ee3\u7801<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/01\/image-1675091618625.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 994px; --smush-placeholder-aspect-ratio: 994\/356;\" \/><\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u4f4d\u56fe\u5206\u4e3a\u5149\u6805\u56fe\u5f62\u548c\u77e2\u91cf\u56fe\u5f62\uff0c\u8fd9\u91cc\u753b\u7684\u5c5e\u4e8e\u524d\u8005\uff0c\u56fe\u50cf\u6570\u636e\u4f1a\u8bb0\u5f55\u6bcf\u4e2a\u50cf\u7d20\u70b9\uff0c\u800c\u77e2\u91cf\u56fe\u5f62\u901a\u5e38\u8bb0\u5f55\u7684\u56fe\u50cf\u7684\u7b97\u6cd5\u53ca\u7ed8\u56fe\u6307\u4ee4\u7b49\uff0c\u5c31\u6bd4\u5982\u6211\u56fe\u50cf\u4e0a\u8981\u5c55\u793a <code class=\"katex-inline\">y=x^2<\/code> \u7684\u56fe\u50cf\uff0c\u6211\u5e76\u4e0d\u9700\u8981\u753b\u51fa\u6765\u518d\u4fdd\u5b58\u8fd9\u4e2a\u56fe\u50cf\uff0c\u800c\u662f\u4fdd\u5b58\u8fd9\u4e2a\u51fd\u6570\u5f0f\u3002\u90a3\u4e48\u77e2\u91cf\u56fe\u5f62\u5c31\u6709\u4e00\u4e2a\u6027\u8d28\uff0c\u653e\u5927\u56fe\u50cf\u90fd\u4e0d\u4f1a\u5f71\u54cd\u6e05\u6670\u5ea6\uff0c\u56e0\u4e3a\u56fe\u50cf\u5185\u5bb9\u662f\u6839\u636e\u7ed8\u56fe\u7684\u6307\u4ee4\u76f4\u63a5\u751f\u6210\u7684\uff0c\u56fe\u50cf\u548c\u5206\u8fa8\u7387\u6ca1\u4ec0\u4e48\u5173\u7cfb\u3002<\/p>\n<pre><code class=\"language-c\">#include &lt;Windows.h&gt;\n#include &quot;resource.h&quot; \/\/ \u5f15\u5165\u8d44\u6e90\u6587\u4ef6\n\nHBITMAP g_hBitmap = {0}; \/\/ \u7528\u4e8e\u4fdd\u5b58\u4f4d\u56fe\u8d44\u6e90\u53e5\u67c4\n\nLRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)\n{\n    switch (msg)\n    {\n        case WM_PAINT:\n        {\n            PAINTSTRUCT ps = {0};\n            HDC hdc = BeginPaint(hWnd, &amp;ps);\n            HDC hdc_ccdc = CreateCompatibleDC(hdc); \/\/ \u521b\u5efa\u548c hdc \u517c\u5bb9\u7684\u5185\u5b58\u4e0a\u4e0b\u6587\n            HGDIOBJ hOldBitmap = SelectObject(hdc_ccdc, g_hBitmap); \/\/ \u5c06\u4f4d\u56fe\u8d44\u6e90\u653e\u5165 hdc_ccdc\n            \/\/ \u5c06 hdc_ccdc \u4e2d\u7684\u4f4d\u56fe\u8d44\u6e90\u539f\u6837\u590d\u5236\u5230 hdc \u4e2d\uff0c\u5373\u5b9e\u73b0\u4f4d\u56fe\u663e\u793a\u51fa\u6765\n            \/\/ \u76ee\u7684 DC \u53e5\u67c4\n            \/\/ \u76ee\u7684\u5de6\u4e0a\u89d2 x\n            \/\/ \u76ee\u7684\u5de6\u4e0a\u89d2 y\n            \/\/ \u76ee\u7684\u5bbd\u5ea6 - \u8fd9\u91cc\u5c31\u5bf9\u5e94\u7684\u4f4d\u56fe\u7684\u5206\u8fa8\u7387 48x48,\u6839\u636e\u81ea\u5df1\u7ed8\u5236\u7684\u56fe\u50cf\u5927\u5c0f\u800c\u5b9a\n            \/\/ \u76ee\u7684\u9ad8\u5ea6\n            \/\/ \u6e90 DC \u53e5\u67c4\n            \/\/ \u6e90\u7684\u5de6\u4e0a\u89d2 x\n            \/\/ \u6e90\u7684\u5de6\u4e0a\u89d2 y\n            \/\/ \u64cd\u4f5c\u4ee3\u7801\uff0c\u8fd9\u91cc\u662f\u539f\u6837\u590d\u5236\n            BitBlt(hdc, 30, 30, 48, 48, hdc_ccdc, 0, 0, SRCCOPY); \n            SelectObject(hdc_ccdc, hOldBitmap);\n            DeleteDC(hdc_ccdc);\n            EndPaint(hWnd, &amp;ps);\n            break;\n        }\n        case WM_CLOSE:\n        {\n            DestroyWindow(hWnd);\n            break;\n        }\n        case WM_DESTROY:\n        {\n            PostQuitMessage(0);\n            DeleteObject(g_hBitmap); \/\/ \u91ca\u653e\u4f4d\u56fe\u8d44\u6e90\n            break;\n        }\n        default:\n        {\n            return DefWindowProc(hWnd, msg, wParam, lParam);\n        }\n    }\n\n    return 0;\n}\n\nint WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPreInstance, _In_ LPWSTR lpCmdLine, _In_ int nCmdShow)\n{\n    g_hBitmap = LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_BITMAP1)); \/\/ \u52a0\u8f7d\u4f4d\u56fe\u8d44\u6e90\n\n    PCWSTR szClassName = L&quot;Desktop&quot;;\n    WNDCLASSEX wc = {0};\n    wc.cbSize = sizeof(WNDCLASSEX);\n    wc.lpfnWndProc = WndProc;\n    wc.lpszClassName = szClassName;\n    if (!RegisterClassEx(&amp;wc))\n    {\n        MessageBox(NULL, L&quot;\u6ce8\u518c\u7a97\u53e3\u5931\u8d25!&quot;, L&quot;\u9519\u8bef&quot;, MB_OK);\n        return 1;\n    }\n\n    HWND hWnd = CreateWindowEx(0, szClassName, L&quot;\u7b80\u5355\u7a0b\u5e8f&quot;, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 300, 300, NULL, NULL, hInstance, NULL);\n    if (!hWnd)\n    {\n        MessageBox(NULL, L&quot;\u521b\u5efa\u7a97\u53e3\u5931\u8d25\uff01&quot;, L&quot;\u9519\u8bef&quot;, MB_OK);\n        return 1;\n    }\n\n    ShowWindow(hWnd, nCmdShow);\n    UpdateWindow(hWnd);\n\n    MSG msg = {0};\n    while (GetMessage(&amp;msg, NULL, 0, 0))\n    {\n        DispatchMessage(&amp;msg);\n    }\n\n    return (int)msg.wParam;\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/01\/image-1675091271386.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 286px; --smush-placeholder-aspect-ratio: 286\/293;\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u73af\u5883 Windows 11 \u4e13\u4e1a\u5de5\u4f5c\u7ad9\u7248 22H2 Visual Studio 2022 \u4e13\u4e1a\u7248 Unicod [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[1,593],"tags":[],"class_list":["post-8657","post","type-post","status-publish","format-standard","hentry","category-all","category-windows-api"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/8657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8657"}],"version-history":[{"count":0,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/8657\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}