Stack around the variable 'info' was corrupted.

[codebm]

新建个WIN32项目（非空），把这段代码覆盖原有的WndProc函数

在DEBUG就会Stack around the variable 'info' was corrupted.

求解

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;
 //static BITMAPINFO info;
	switch (message)
	{
	case WM_COMMAND:
		wmId    = LOWORD(wParam);
		wmEvent = HIWORD(wParam);
		// 分析菜单选择:
		switch (wmId)
		{
		case IDM_ABOUT:
			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
			break;
		case IDM_EXIT:
			
			{
				//
				//HDC hdcScreen = CreateDC(_T("DISPLAY"), NULL, NULL, NULL); 
				HDC hdcScreen = GetDC(NULL); 
				
				HDC hdc = GetDC(hWnd);
				//一个memory dc和一个bitmap(ddb)
				HDC hCompatibleDC = CreateCompatibleDC(hdcScreen);
				HBITMAP hBitMap = CreateCompatibleBitmap(hdcScreen, GetDeviceCaps(hdcScreen, HORZRES), GetDeviceCaps(hdcScreen, VERTRES));
				::SelectObject(hCompatibleDC, hBitMap);

				//拷贝surface的数据到bitmap里
				::BitBlt(hCompatibleDC, 0, 0, GetDeviceCaps(hdcScreen, HORZRES), GetDeviceCaps(hdcScreen, VERTRES), hdcScreen, 0, 0, SRCCOPY);
			

			
				//ddb->dib
				BITMAPINFO info;
				::memset(&info, 0, sizeof(info));
				info.bmiHeader.biBitCount = 4;
				info.bmiHeader.biSize = sizeof(info.bmiHeader);
				info.bmiHeader.biPlanes = 1;
				info.bmiHeader.biCompression = BI_RGB;
			
				info.bmiHeader.biWidth = GetDeviceCaps(hdcScreen, HORZRES);
				info.bmiHeader.biHeight = GetDeviceCaps(hdcScreen, VERTRES);
				char *buff = new char[GetDeviceCaps(hdcScreen, HORZRES) * GetDeviceCaps(hdcScreen, VERTRES) * 3];
				if(!GetDIBits(hCompatibleDC, hBitMap, 0, GetDeviceCaps(hdcScreen, VERTRES), buff, &info, DIB_PAL_COLORS))
					::MessageBox(hWnd, NULL, NULL, MB_OK);;
		
				//dib->surface

				SetDIBitsToDevice(hdc, 0, 0, GetDeviceCaps(hdcScreen, HORZRES), GetDeviceCaps(hdcScreen, VERTRES), 0, 0, 0, GetDeviceCaps(hdcScreen, VERTRES), buff, &info, DIB_PAL_COLORS);
/*	*/			
				//释放
				delete []buff;
				buff = 0;
				::DeleteDC(hCompatibleDC);
				::DeleteObject(hBitMap);
				ReleaseDC(hWnd, hdc);
				ReleaseDC(NULL, hdcScreen);

				//DeleteDC(hdcScreen);
			}//DestroyWindow(hWnd);


			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
		}
		break;
	case WM_PAINT:
		hdc = BeginPaint(hWnd, &ps);
		// TODO: 在此添加任意绘图代码...
		EndPaint(hWnd, &ps);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

[看不见的裂痕]

你那个buff=0；是啥，不都delete了还用buff？

[codebm]

个人习惯。。

以免再用buff的时候引起问题

这个又不影响。

[hexuyue520]

溢出，这属于溢出了吧

[colander]

delete之后赋成0不会错的，这样可以防止野指针。

但是不知道为什么会栈溢出，我也遇到过类似的问题，到底怎么回事啊？