SendMessage to Control WMP
先用 spy 得到 wmp 的 windows class 及 caption，並只觀察「WM_COMMAND」message，可發現當 pause、stop、resume 時，wParam 參數會隨之變化。
void main(int argc, char** argv)
{
if (argc> 1)
{
int n = atoi(argv[1]);
HWND wmp = FindWindow("WMPlayerApp", "Windows Media Player");
switch(n)
{
case 0: //pause,play
SendMessage(wmp, WM_COMMAND, 18808, 0);
break;
case 1: //stop
SendMessage(wmp, WM_COMMAND, 18809, 0);
break;
case 2: //next
SendMessage(wmp, WM_COMMAND, 18811, 0);
break;
case 3: //prev
SendMessage(wmp, WM_COMMAND, 18810, 0);
break;
case 4: //random
SendMessage(wmp, WM_COMMAND, 18842, 0);
break;
}
}
}