mummily的专栏

对话框：HWND hwnd=::FindWindow(NULL,"ReceiveMsg"); if(hwnd==NULL) {  AfxMessageBox("没有找到接受消息的窗体");  return; } ::SendMessage(hwnd,WM_ENABLEBUTTON,0,0);说明：自定义：#define WM_ENABLEBUTTON WM_USER

1. CWnd::PostMessageBool PostMessage(UINT message,WPARAM wParam=0,LPARAM lParam=0);返回值：Nonzero if the message is posted; otherwise 0.（即消息是否提交成功）说明：将消息放入windows消息队列，就直接返回，需要通过使用GetMessage或PeekMes