createwindow

WinAPI create window + child windows, process a button press?

由 ╄→гoц情女王★ 提交于 2019-12-08 13:55:49
问题 I'm new to WinApi and I'm looking to create a simple window inside my program containing a blank parent window and two smaller child buttons "button1" & "button2". with this button I'm hoping to change a bool value from false to true and visa versa, but nearly all the examples I have seen are quite hard to understand, it seems like you have to return an MSG value of some kind which I don't know how to process. I have a pseudocode below of what I'm trying to do, I have left comments explaining

After createwindow(…), how to give the window a color?

由 丶灬走出姿态 提交于 2019-12-07 19:24:06
问题 I have created a window whose handle is handle_parent. Then I created a child window as following: hwnd_child = CreateWindow(child_class_name, _T(""), WS_CHILDWINDOW, 0, 0, 0, 0, hwnd_parent, (HMENU)0, ghinst, NULL); ShowWindow(win->hwndSplitterBar, SW_SHOW); UpdateWindow(win->hwndSplitterBar); I would like to set the color of child window "child". If I do nothing, the color is grey by default. How could I set its color? I would like to keep the color as black permanent, do change in anycase.

设置static控件背景颜色、控件字体的背景颜色和控件字体的颜色

由 若如初见. 提交于 2019-12-07 13:15:40
#include <windows.h> LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); HINSTANCE hInst; /* The 'main' function of Win32 GUI programs: this is where execution starts */ int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { static TCHAR szClassName[] = TEXT("HelloWin"); /*窗口类名*/ HWND hwnd; /*窗口句柄*/ MSG msg; /*消息*/ WNDCLASS wndclass; /*窗口类*/ hInst = hInstance; /***********第一步：注册窗口类*************/ /*为窗口类各个字段赋值*/ wndclass.style = CS_HREDRAW | CS_VREDRAW; /*窗口风格*/ wndclass.lpfnWndProc = WndProc; /*窗口过程*/ wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0

Get exact window region size - CreateWindow window size isn't correct size of window

由 房东的猫 提交于 2019-12-07 09:30:45
问题 I've noticed something very annoying while trying to create a window in C++ and draw Rectangles that the window size doesn't match the size I set. For example, If I set the 480x240 window and try to Draw rectangles from top to bottom, left to right by getting GetWindowRect(hwnd, &rect) and calculate the width and height: rectangle_width = (rect.right - rect.left) / amountRectangleX; rectangle_height = (rect.bottom - rect.top) / amountRectangleY; if amountRectangleX = 2 and Y = 2 it draw 4

Create a native Windows window in JNA and some GetWindowLong with GWL_WNDPROC

由 女生的网名这么多〃 提交于 2019-12-07 09:01:03
问题 Good day, I have been using JNA for a while to interact with the Windows API and now I am stuck when creating a window. As far as I have done the following: 1. Have created a child window of an existing window and obtained a valid handler to it. 2. Understood that every window in Windows has a non-stop message-dispatch loop. 3. Understood that the best way to include my window in the message-dispatch loop is to use something like the following code (not mine, but that is what I would do as

Win32: How to create a ListBox control using the CreateWindowExW() function?

由 為{幸葍}努か 提交于 2019-12-06 03:53:22
问题 I've been through multiple sites, documents and tutorials and they all say the same, that is, any control is nothing more than a window in Win32's API, hence one is able to use the CreateWindowExW() function to create a ListBox control/window over the main application window. Though I get the concepts of all controls being windows with different dwStyle , I have a hard time finding out how to instantiate, to say so, the ListBox control. I encountered a tutorial where a dialog is written to

Create a native Windows window in JNA and some GetWindowLong with GWL_WNDPROC

由 半城伤御伤魂 提交于 2019-12-05 14:18:57
Good day, I have been using JNA for a while to interact with the Windows API and now I am stuck when creating a window. As far as I have done the following: 1. Have created a child window of an existing window and obtained a valid handler to it. 2. Understood that every window in Windows has a non-stop message-dispatch loop. 3. Understood that the best way to include my window in the message-dispatch loop is to use something like the following code (not mine, but that is what I would do as well): final LONG_PTR prevWndProc = new LONG_PTR(User32.INSTANCE.GetWindowLong(hwnd, User32.GWL_WNDPROC))

Get exact window region size - CreateWindow window size isn't correct size of window

由 我是研究僧i 提交于 2019-12-05 13:56:08
I've noticed something very annoying while trying to create a window in C++ and draw Rectangles that the window size doesn't match the size I set. For example, If I set the 480x240 window and try to Draw rectangles from top to bottom, left to right by getting GetWindowRect(hwnd, &rect) and calculate the width and height: rectangle_width = (rect.right - rect.left) / amountRectangleX; rectangle_height = (rect.bottom - rect.top) / amountRectangleY; if amountRectangleX = 2 and Y = 2 it draw 4 rectangles, but the width and height is "off" so it doesn't fill up the whole screen or it renders over it

Win32: How to create a ListBox control using the CreateWindowExW() function?

由 落花浮王杯 提交于 2019-12-04 08:59:01
I've been through multiple sites, documents and tutorials and they all say the same, that is, any control is nothing more than a window in Win32's API, hence one is able to use the CreateWindowExW() function to create a ListBox control/window over the main application window. Though I get the concepts of all controls being windows with different dwStyle , I have a hard time finding out how to instantiate, to say so, the ListBox control. I encountered a tutorial where a dialog is written to have a LISTBOX specified in its declaration as follows: // resource.h #define IDD_MAIN 101 #define IDC

BringWindowToTop is Not working even if I get the handle to Class Window

由 旧时模样 提交于 2019-12-02 04:05:03
问题 I am registering my Class in the following method: BOOL CNDSClientDlg::InitInstance() { //Register Window Updated on 16th Nov 2010, @Subhen // Register our unique class name that we wish to use WNDCLASS wndcls; memset(&wndcls, 0, sizeof(WNDCLASS)); wndcls.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW; wndcls.lpfnWndProc = ::DefWindowProc; wndcls.hInstance = AfxGetInstanceHandle(); wndcls.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); wndcls.lpszMenuName = NULL; //Class name for using FindWindow
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