Code Style Comparison 2011 v. 2015

// 2011
void* GetScreenShot(void){
    int width, height;
    HDC hdcScreen, hdcCom;
    HBITMAP hbmSnap;

    if((hdcScreen = CreateDC("DISPLAY", NULL, NULL, NULL))==NULL){
        return NULL;
    }
    if((hdcCom = CreateCompatibleDC(hdcScreen))==NULL){
        DeleteDC(hdcScreen);
        return NULL;
    }
    width  = GetDeviceCaps(hdcScreen, HORZRES);
    height = GetDeviceCaps(hdcScreen, VERTRES);
    if((hbmSnap = CreateCompatibleBitmap(hdcScreen, width, height))==NULL){
        DeleteDC(hdcCom);
        DeleteDC(hdcScreen);
        return NULL;
    }
    if(SelectObject(hdcCom, hbmSnap)==NULL
    || !BitBlt(hdcCom, 0, 0, width, height, hdcScreen, 0, 0, SRCCOPY)){
        DeleteObject(hbmSnap);
        DeleteDC(hdcCom);
        DeleteDC(hdcScreen);
        return NULL;
    }
    DeleteDC(hdcCom);
    DeleteDC(hdcScreen);
    return hbmSnap;
}

// 2015
HBITMAP __WDECL CaptureScreenBitmap(void)
{
    bool bSuccess = false;
    HBITMAP hBmp;
    HDC hDC, hBmpDC;

    if((hDC = CreateDC("DISPLAY", NULL, NULL, NULL))!=NULL)
    {
        if((hBmpDC = CreateCompatibleDC(hDC))!=NULL)
        {
            SIZE Sz = { GetDeviceCaps(hDC, HORZRES), GetDeviceCaps(hDC, VERTRES) };

            if((hBmp = CreateCompatibleBitmap(hDC, Sz.cx, Sz.cy))!=NULL)
            {
                HGDIOBJ hPrevBmp = SelectObject(hBmpDC, hBmp);

                if(BitBlt(hBmpDC, 0, 0, Sz.cx, Sz.cy, hDC, 0, 0, SRCCOPY))
                {
                    bSuccess = true;
                }

                SelectObject(hBmpDC, hPrevBmp);

                if(!bSuccess)
                {
                    DeleteObject(hBmp);
                    hBmp = NULL;
                }
            }

            DeleteDC(hBmpDC);
        }

        DeleteDC(hDC);
    }

    return hBmp;
}