如何在Windows窗口中插入图片

发布网友发布时间：2023-04-01 19:23

共1个回答

热心网友时间：2023-11-22 21:34

然后显示图片需要写在WM_PAINT消息里：

首选使用函数LoadImage载入位图或图标。

hb_icon = (HBITMAP)::LoadImage(hInst, _TEXT("icon.bmp"), IMAGE_BITMAP, 36, 36, LR_CREATEDIBSECTION | LR_DEFAULTSIZE | LR_LOADFROMFILE);

    HDC hMemDC = CreateCompatibleDC(hdc); //创建内存DC

    ::SelectObject(hMemDC, hb_icon); //把位图选进内存DC

    BitBlt(hdc, 0, 0, 35, 35, hMemDC, 0, 0, SRCCOPY); //内存DC映射到屏幕DC

列子

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

switch (message)

{

case WM_COMMAND:

{

HWND wmId = (HWND)LOWORD(lParam);

switch(LOWORD(wParam)){

case IDM_ABOUT:

DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);

break;

case IDM_EXIT:

DestroyWindow(hWnd);

break;

default:

return DefWindowProc(hWnd, message, wParam, lParam);

}

break;

}

case WM_PAINT:

{

PAINTSTRUCT ps;

HDC hdc = BeginPaint(hWnd, &ps);

su_icon = (HBITMAP)::LoadImage(hInst, _TEXT("icon.bmp"), IMAGE_BITMAP, 36, 36, LR_CREATEDIBSECTION | LR_DEFAULTSIZE | LR_LOADFROMFILE);

//绘制图标

HDC hMemDC = CreateCompatibleDC(hdc); //创建内存DC

::SelectObject(hMemDC, su_icon); //把位图选进内存DC

BitBlt(hdc, 10, 75, 35, 35, hMemDC, 0, 0, SRCCOPY); //内存DC映射到屏幕DC

EndPaint(hWnd, &ps);

break;

}

case WM_DESTROY:

PostQuitMessage(0);

break;

default:

return DefWindowProc(hWnd, message, wParam, lParam);

}

return 0;

}