pb中使用api发送消息进程间通讯

FUNCTION   u

FUNCTION   uLong SendMessageA(ulong hWnd, ulong   wMsg,ulong   wParam , ref   string   lParam   )   library   "user32.dll" 
FUNCTION ulong FindWindowA(ulong llong,ref string lpWindowName) LIBRARY "user32.dll"
FUNCTION   ulong SetWindowTextA(ulong   hwnd,ref   string   lpString)   LIBRARY   "user32.dll"    

　　

Long SendMessageA(ulong hWnd, ulong   wMsg,ulong   wParam , ref   string   lParam   )   library   "user32.dll"
FUNCTION ulong FindWindowA(ulong llong,ref string lpWindowName) LIBRARY "user32.dll"
FUNCTION   ulong SetWindowTextA(ulong   hwnd,ref   string   lpString)   LIBRARY   "user32.dll"