C++ 将图标加载到按钮上

Question

我正在尝试将图标加载到我的按钮上。我正在使用 Code::Blocks。我真的不关心图像是 BITMAP (.bmp) 还是 ICON (.ico)。下面是案例 WM_CREATE.

的代码

case WM_CREATE:
    HWND button;
    button = CreateWindow("BUTTON", "My Button", WS_VISIBLE | WS_CHILD,
                          225, 225, 100, 25, hwnd, NULL, NULL, NULL);
break;

是否可以在不复杂的情况下向按钮添加图标？感谢您的宝贵时间:)

Answer 1

您可以像这样向您的按钮发送 BM_SETIMAGE 消息：

case WM_CREATE:
  // load your bitmap from the executable, you should also be able
  // to load the bitmap / or icon from disk using `LoadImage`
  HBITMAP hBitmap = LoadBitmap(hInstance, MAKEINTRESOURCE("<ResourceID>"));

  // notice the BS_BITMAP flag (you could also use `BS_ICON`)
  // perhaps you also would like to add BS_PUSHBUTTTON style
  HWND button = CreateWindow("BUTTON", 
                             "My Button", 
                             WS_VISIBLE | WS_CHILD | BS_BITMAP,
                             225, 225, 100, 25, 
                             hwnd, 
                             NULL, 
                             hInstance, 
                             NULL);
  // set the bitmap of your window, you could use `BM_SETICON` in
  // case you're using an icon rather than a bitmap
  SendMessage(button, BM_SETIMAGE, (WPARAM)IMAGE_BITMAP, (LPARAM)hBitmap);
break;

要从磁盘上的文件加载位图，您可以这样做：

HBITMAP hBitmap = (HBITMAP)LoadImage(NULL, 
                                     "NameOfBitmap.bmp", 
                                     IMAGE_BITMAP,
                                     0, 0,
                                     LR_LOADFROMFILE);

参考资料
Button Messages
LoadBitmap()
LoadIcon()
LoadImage()
Button Styles

C++ 将图标加载到按钮上

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