client.c

演示X协议通讯的小程序

#include <X11/Xlib.h>

Display *display;

void  RfNotifyDock()
{

	Window 	win;
	Atom 	dockatom;
	XClientMessageEvent event;
	
	dockatom = XInternAtom(display,"_GENERIC_CLIPBOARD_MANAGER" , False);
	win = XGetSelectionOwner(display, dockatom); //获得rfdock窗口ID
	printf("win id is %d.\n", win);
	event.type = ClientMessage;
	event.window = win;
	event.message_type = dockatom;
	event.format = 32;
	sprintf(event.data.b, "%d", 3); //消息内容
	XSendEvent(display, win, False, 0, (XEvent *)&event);
	XSync(display, False);
}


int main()
{
	display = XOpenDisplay(NULL);
	RfNotifyDock();
	while(1) {}
}