我已經看過一些背景繪製教程,但我仍然無法繪製我的背景;它總是白色的。我的資源已經在項目中。我已經嘗試了其他幾種使用paint的方法,但它仍然不會繪製背景圖像。C++ Win32背景圖片
#include <windows.h>
#include <commctrl.h>
#include "resource.h"
HINSTANCE hInst;
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
HWND hProgress, hWndBottom;
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
hInst = hInstance;
MSG msg = {0};
WNDCLASS wc = {0};
wc.lpfnWndProc = WndProc;
wc.hInstance = hInstance;
wc.hbrBackground = CreatePatternBrush(LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_BG)));//(HBRUSH)(COLOR_BACKGROUND);
wc.lpszClassName = "Test";
if(!RegisterClass(&wc))
return 1;
if(!CreateWindow(wc.lpszClassName,
"Tests",
WS_POPUPWINDOW|WS_VISIBLE, //WS_OVERLAPPEDWINDOW|WS_VISIBLE
1,1,200,250,0,0,hInstance,NULL))
return 2;
while(GetMessage(&msg, NULL, 0, 0) > 0)
DispatchMessage(&msg);
return 0;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
//Make TopMost
::SetWindowPos(hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
INITCOMMONCONTROLSEX InitCtrlEx;
InitCtrlEx.dwSize = sizeof(INITCOMMONCONTROLSEX);
InitCtrlEx.dwICC = ICC_PROGRESS_CLASS;
SendMessage(hProgress, PBM_SETRANGE, 0, MAKELPARAM(0, 100));
switch(message)
{
case WM_CREATE:
{
hProgress = CreateWindowEx(0, PROGRESS_CLASS, NULL,
WS_CHILD | WS_VISIBLE | PBS_SMOOTH,
10, 190, 170, 10,
hWnd, NULL, hInst, NULL);
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
我無法重現該問題。檢查'CreatePatternBrush'和'LoadBitmap'的返回值。 – 2014-08-30 23:22:44