Question

我正在编写一个自动在画布上绘制内容的应用程序，具体取决于用户的首选项。对于初学者，如何将点击事件发送到MS Paint应用程序？

Answer 1

首先，您需要找到Paint应用程序：

static HWND findMSPaintDrawWindow(void)
{
    HWND target;
    target = FindWindow(TARGET_PAINT_WINDOW, NULL);
    if (NULL != target)
    {
        target = FindWindowEx(target, NULL, TARGET_PAINT_INPUT_SUBWINDOW, NULL);

        if (NULL != target)
        {
            target = FindWindowEx(target, NULL, NULL, NULL);
        }
    }

    if (/*ENABLE_DEBUG_CONSOLE*/ 0)
    {
        char name[256];
        GetClassName(target, name, 255);
        printf("Detected ms paint Draw area with name [%s]\n", name);
    }

    return target;
}

其次，你与它互动：

static void sendMouseButton(int buttonState)
{
    HWND target;
    UINT buttonMode = WM_LBUTTONUP;

    target = findMSPaintDrawWindow();
    if (target)
    {
        if (buttonState)
        {
            buttonMode = WM_LBUTTONDOWN;
            g_MouseDown = 0;
        }
        printf("INFO: Mouse [%d] msg %d\n", buttonState, buttonMode);
        PostMessage(target, buttonMode, MK_LBUTTON, X, Y));
    }

}

您可以随时浏览MSDN文档以获取更多详细信息。

Answer 2

您必须搜索谷歌如何将Windows消息发送到不同的应用程序。鼠标单击由2个不同的消息组成：WM_LBUTTONDOWN和WM_LBUTTONUP。

http://stefanstools.sourceforge.net/SendMessage.html http://www.codeproject.com/Articles/137/Sending-a-message-to-the-Main-Frame-Window-of-Anot

将单击事件发送到Paint应用程序

2 个答案: