wndproc | 易学教程

Resize Event for Console

阅读更多关于 Resize Event for Console

问题 So I thought the window resize event would come through winproc, I might be mistaken, looking to get notified for a Console resize event. I want to maximize the console buffer on resize, and once it's finished essentially shrink it back down to the window size, thus preventing an overflow error due to the buffer being smaller than the window. 回答1: Unfortunately, the answer is you can't hook the console's WndProc because it's in a separate, security-controlled process. Spy++ can hook other

Multiple device inserted notifications

阅读更多关于 Multiple device inserted notifications

问题 Can anyone tell me why when using the following code I receive multiple (three or four device arrival notifications)? Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message) Const WM_DEVICECHANGE As Integer = &H219 Const DBT_DEVICEARRIVAL As Integer = &H8000 Const DBT_DEVICEREMOVECOMPLETE As Integer = &H8004 If m.Msg = WM_DEVICECHANGE Then If m.WParam.ToInt32() = DBT_DEVICEARRIVAL then messagebox.show("Device arrived") ElseIf m.WParam.ToInt32 = DBT_DEVICEREMOVECOMPLETE And

WndProc in my WPF app not 'handling' WM_INPUT event

阅读更多关于 WndProc in my WPF app not 'handling' WM_INPUT event

问题 [Edit] Here's what I've gleaned about mouse input handling thus far. Note that I've learned this via a bunch of different sources and via experimentation, so don't take this as gospel: 1) Mouse event originates with mouse move 2) SetWindowsHookEx(WH_MOUSE_LL) handler LowLevelMouseProc sees event first 3) OS/app framework handles Mouse event at some high level (mouse cursor moves) 4) WM_INPUT event is picked up by app event queue and handled by WndProc (although handling at this time does not

Why would Windows hooks not receive certain messages?

阅读更多关于 Why would Windows hooks not receive certain messages?

问题 Microsoft does not recommend DirectInput for keyboard and mouse input. As such, I've written an input manager class that uses SetWindowsHookEx to hook into WndProc and GetMsg. I believe the hooks are set appropriately, though they look to be the cause of various issues. Neither my WndProc nor GetMsg hooks receive any of the messages that the actual WndProc is receiving. My input manager never receives the WM_INPUT, WM_ BUTTON , WM_MOUSEWHEEL, and WM_KEY* messages that it needs. What gives?

What do these WndProc codes mean?

阅读更多关于 What do these WndProc codes mean?

I'm trying to make a window that closes when you click outside it , and at the moment I'm looking into doing that by handling the WndProc function. None of the messages I'm getting so far seem useful, but there are a few I don't understand at all. What do codes 0x0118, 0xC123, 0xC128 and 0xC12E represent? 0x0118: WM_SYSTIMER (undocumented) used for caret blinks The other three should be application defined messages (anything in the range 0xC000 to 0xFFFF) so you won't find those defined anywhere. An easy way would be to just capture the mouse. When you have the mouse captured you get one click

How do I `std::bind` a non-static class member to a Win32 callback function `WNDPROC`?

阅读更多关于 How do I `std::bind` a non-static class member to a Win32 callback function `WNDPROC`?

问题 I'm trying to bind a non-static class member to a standard WNDPROC function. I know I can simply do this by making the class member static. But, as a C++11 STL learner, I'm very interested in doing it by using the tools under the <functional> header. My code is as follows. class MainWindow { public: void Create() { WNDCLASSEXW WindowClass; WindowClass.cbSize = sizeof(WNDCLASSEX); WindowClass.style = m_ClassStyles; WindowClass.lpfnWndProc = std::function<LRESULT(HWND, UINT, WPARAM, LPARAM)> (

Clipboard.GetText overrides clipboard?

阅读更多关于 Clipboard.GetText overrides clipboard?

问题 Here is what im trying to do: There is some game which writes some info about item under mouse cursor into clipboard when i press Ctrl-C. Im trying to grab that info and select some stuff i need from it. Im doing it like this: //at form load RegisterHotKey(this.Handle, 0, 0x002, (int)Keys.C); protected override void WndProc(ref Message m) { if (m.Msg == 0x0312) { int id = m.WParam.ToInt32(); if (id == 0) { System.Threading.Thread.Sleep(155); //ive thought if i add some delay it would help but

Delphi 6 : breakpoint triggered on non-VCL thread stops main thread repaints

阅读更多关于 Delphi 6 : breakpoint triggered on non-VCL thread stops main thread repaints

问题 I have a multi-threaded Delphi 6 Pro application that I am currently working on heavily. If I set a breakpoint on any code that runs in the context of the Main thread (VCL thread) I don't have any problems. However, if a breakpoint is triggered on any code in one of my other threads, after I continue the application from the breakpoint, all repaints to the VCL components on the main thread (including the main form) don't happen anymore. The application isn't dead because other background code

What do these WndProc codes mean?

阅读更多关于 What do these WndProc codes mean?

问题 I'm trying to make a window that closes when you click outside it, and at the moment I'm looking into doing that by handling the WndProc function. None of the messages I'm getting so far seem useful, but there are a few I don't understand at all. What do codes 0x0118, 0xC123, 0xC128 and 0xC12E represent? 回答1: 0x0118: WM_SYSTIMER (undocumented) used for caret blinks The other three should be application defined messages (anything in the range 0xC000 to 0xFFFF) so you won't find those defined

C# Form Control Move

阅读更多关于 C# Form Control Move

问题 Is there anyway to control where you can move a form? So if i move a form, it can only be moved on the vertical axis and when i try to move it horizontally, nothing happens. I dont want a buggy implementation like locationchanged or move event and poping it back inline. I no there is a way using something like a WndProc override but after searching for a while, i couldnt find anything. Please help 回答1: You would most likely want to override WndProc and handle the WM_MOVING message. According