妳說的是畫筆畫矩形把?
#include?<windows.h>int?main()
{
HWND?hWnd?=?(HWND)5244612;?//?作為場景窗口句柄
HDC?nDc=?GetWindowDC(hWnd);
SetROP2(nDc,R2_NOTXORPEN);
RECT?rect;
GetWindowRect(hWnd,&rect);?//畫場景句柄矩形?所以left?和?top?都可以設置為0;
rect.left?=?0;
rect.top?=?0;
HPEN?nHpen?=?CreatePen(0,3,RGB(0,0,255));
HGDIOBJ?nHg?=?SelectObject(nDc,nHpen);
Rectangle(nDc,rect.left+10,rect.top+10,rect.bottom,rect.right-50);//
//上面的加減是為了更畫?窗口矩形的位置準確所運算的
SelectObject(nDc,nHg);
DeleteObject(nHpen);
ReleaseDC(hWnd,nDc);
return?0;
}
參考地址:http://www.krabs.co/cpp/795.html