调整窗口大小时，公共控件未正确绘制 [英] Common controls are not properly painted when I resize window
问题描述
我正在创建带有子对话框作为页面的选项卡控件.
I am creating tab control with child dialog boxes as pages.
我通过 #pragma 注释启用了 Visual Styles.我也调用了 InitCommonControlsEx 和 #pragma comment( lib, "comctl32.lib" ).
I have Visual Styles enabled via #pragma comment. I have also called InitCommonControlsEx and #pragma comment( lib, "comctl32.lib" ) as well.
最初，当窗口加载时，对话框及其常用控件具有适当的背景，请参见下图:
Initially, when window loads, dialog and its common controls have proper background, please see image below:
在调整大小时，事情不是那么一致 -> 背景开始明显不匹配.我将在下面提供截图:
During resizing things are not so consistent -> background starts to mismatches visibly. I will provide screenshot below:
您可以清楚地看到 checkbox 和 static control 有不正确的背景，而在我看来 dialog box (创建作为子控件) 具有适当的背景.
You can clearly see that checkbox and static control have improper background, while it seems to me that dialog box ( created to act as a child control ) has proper background.
于 2014 年 11 月 24 日
将控件封装到group box 后，似乎没有绘画问题.我的显示器是旧的 CRT(Samsung SyncMaster 753s)，我的视力不好，但似乎一切正常.窗口在调整大小时仍然闪烁可怕，但 我已尽我所能 来修复它.
After enclosing controls into group boxes there seems to be no painting problems. My monitor is old CRT ( Samsung SyncMaster 753s ), and I have bad eyesight, but again, it seems that everything paints properly. The window still flickers horribly on resize, but I have tried everything in my power to fix it.
我该如何解决这个问题?
How can I fix this?
我还没有找到任何东西，但我在输入这个问题时仍然在盯着看......
I haven't found anything yet but I am still Goggling while typing this question...
以下是用于说明问题的演示创建说明:
Here are the instructions for creating demo that illustrates the problem:
1.) 在Visual Studio中创建空的C++项目；
1.) Create empty C++ project in Visual Studio;
2.) 添加头文件，将其命名为 pomocne_funkcije.h 并复制/粘贴以下内容:
2.) add header file, name it pomocne_funkcije.h and copy/paste following:
#include <windows.h>
#include <windowsx.h>
#include <comutil.h>
#include <commctrl.h>
#include <stdio.h>
#include <vector>
#include <ole2.h>
#include <string>
#include <stdlib.h>
#include <locale.h>
#include <Uxtheme.h>
#pragma comment( linker, "/manifestdependency:"type='win32'
name='Microsoft.Windows.Common-Controls' version='6.0.0.0'
processorArchitecture='*' publicKeyToken='6595b64144ccf1df'
language='*'"")
#pragma comment( lib, "comctl32.lib")
#pragma comment( lib,"Msimg32.lib")
#pragma comment( lib, "comsuppw.lib")
#pragma comment( lib, "UxTheme.lib")
3.) 在资源编辑器中创建对话框，添加复选框静态控件.
3.) Create dialog box in resource editor, add checkbox static control.
为对话框设置以下内容:
Set the following for dialog box:
- 边框:无
- 控制:真
- 控制父级:true
- 风格:儿童
- 系统菜单:错误
4.) 这是 main.cpp 的代码:
4.) Here is the code for main.cpp :
#include "pomocne_funkcije.h"
static HINSTANCE hInst;
// dialog procedure for firts tab
INT_PTR CALLBACK Ugovori(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
UNREFERENCED_PARAMETER(lParam);
switch (message)
{
case WM_INITDIALOG:
{
EnableThemeDialogTexture( hDlg, ETDT_ENABLETAB );
}
return (INT_PTR)TRUE;
}
return (INT_PTR)FALSE;
}
// main window procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static HWND hDlgFirstTab; // handle to the first page dialog box
switch(msg)
{
case WM_CREATE:
{
RECT rcClient = {0};
::GetClientRect( hwnd, &rcClient );
HWND hwndTab = CreateWindowEx( 0, WC_TABCONTROL,
L"Ugovori", WS_CHILD | WS_VISIBLE,
10, 10, rcClient.right - rcClient.left - 20,
rcClient.bottom - rcClient.top - 63,
hwnd, (HMENU)3000,
((LPCREATESTRUCT)lParam)->hInstance, 0 );
TCITEM tci = {0};
tci.mask = TCIF_TEXT;
tci.pszText = L"Основни подаци";
TabCtrl_InsertItem( hwndTab, 0, &tci );
// set font so cyrilic symbols can be properly displayed instead of ???
SendMessage( hwnd, WM_SETFONT,
(WPARAM)(HFONT)GetStockObject(DEFAULT_GUI_FONT),
(LPARAM)TRUE );
SendMessage( hwndTab, WM_SETFONT,
(WPARAM)(HFONT)GetStockObject(DEFAULT_GUI_FONT),
(LPARAM)TRUE );
// create page ( dialog box )
hDlgFirstTab = CreateDialog( ((LPCREATESTRUCT)lParam)->hInstance,
MAKEINTRESOURCE(IDD_DIALOG1),
hwnd,
(DLGPROC)Ugovori ); // dialog procedure
ShowWindow( hDlgFirstTab, SW_SHOW );
}
return 0L;
case WM_MOVE:
case WM_MOVING:
case WM_SIZING:
case WM_SIZE:
{
RECT rcClient = {0};
GetClientRect( hwnd, &rcClient );
SetWindowPos( GetDlgItem( hwnd, 3000 ), NULL,
rcClient.left + 10, // move it away from window edge by 10 pixels
rcClient.top + 10, // move it away from window edge by 10 pixels
rcClient.right - rcClient.left - 20,
// - 63 was the size of the button,
// but I have deleted that button here to preserve space
rcClient.bottom - rcClient.top - 63,
SWP_NOZORDER | SWP_NOCOPYBITS );
// get tab control's client rectangle
GetClientRect( GetDlgItem( hwnd, 3000 ), &rcTab );
//============= place dialog box into tab's client area
MapWindowPoints( GetDlgItem( hwnd, 3000 ), hwnd,
(LPPOINT)(&rcTab), 2 );
// get tab's display area
TabCtrl_AdjustRect( GetDlgItem( hwnd, 3000 ),
FALSE, &rcTab );
// move dialog box
SetWindowPos(hDlgFirstTab, NULL,
rcTab.left, rcTab.top,
rcTab.right - rcTab.left,
rcTab.bottom - rcTab.top,
SWP_NOZORDER);
//========================= done
// repaint window
InvalidateRect( hwnd, NULL, FALSE );
}
return 0L;
case WM_ERASEBKGND:
return 1L;
case WM_PAINT:
{
PAINTSTRUCT ps = {0};
HDC hdc = BeginPaint( hwnd, &ps );
SendMessage( hwnd, WM_PRINTCLIENT, (WPARAM)hdc, 0 );
EndPaint( hwnd, &ps );
}
return 0L;
case WM_PRINTCLIENT:
{
RECT rcClient = {0};
GetClientRect( hwnd, &rcClient );
FillRect( (HDC)wParam, &rcClient,
(HBRUSH)GetStockObject(WHITE_BRUSH) );
}
return 0L;
case WM_CLOSE:
::DestroyWindow(hwnd);
return 0L;
case WM_DESTROY:
::PostQuitMessage(0);
return 0L;
default:
return ::DefWindowProc( hwnd, msg, wParam, lParam );
}
return 0;
}
// WinMain
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine,
int nCmdShow)
{
// store hInstance in global variable for later use
hInst = hInstance;
WNDCLASSEX wc;
HWND hwnd;
MSG Msg;
// initialize common controls
INITCOMMONCONTROLSEX iccex;
iccex.dwSize = sizeof(INITCOMMONCONTROLSEX);
iccex.dwICC = ICC_LISTVIEW_CLASSES | ICC_UPDOWN_CLASS |
ICC_STANDARD_CLASSES | ICC_TAB_CLASSES;
InitCommonControlsEx(&iccex);
// register main window class
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInst;
wc.hIcon = LoadIcon( hInstance, IDI_APPLICATION );
wc.hCursor = LoadCursor( NULL, IDC_ARROW );
wc.hbrBackground = (HBRUSH)GetStockObject( WHITE_BRUSH );
wc.lpszMenuName = NULL;
wc.lpszClassName = L"Main_Window";
wc.hIconSm = LoadIcon( hInstance, IDI_APPLICATION );
if(!RegisterClassEx(&wc))
{
MessageBox(NULL,
L"Window Registration Failed!", L"Error!",
MB_ICONEXCLAMATION | MB_OK);
return 0;
}
// create main window
hwnd = CreateWindowEx( 0, L"Main_Window",
L"Contract manager",
WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL, NULL, hInstance, 0 );
if(hwnd == NULL)
{
MessageBox(NULL, L"Nemogu da napravim prozor!", L"Greska!",
MB_ICONEXCLAMATION | MB_OK);
return 0;
}
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
while(GetMessage(&Msg, NULL, 0, 0) > 0)
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
return Msg.wParam;
}
我正在使用 C++ 和 WinAPI 在 Windows XP 上的 Visual Studio 2008 中工作.
I am working in Visual Studio 2008 on Windows XP using C++ and WinAPI.
推荐答案
您的选项卡对话框按 Z 顺序位于选项卡控件下方.这会在第一次调整大小时导致疯狂的过度绘制问题.将选项卡对话框作为子窗口添加到主窗口后，调用 SetWindowPos(tab, HWND_TOP, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE) 将它们移动到 Z 顺序的顶部.
Your tab dialogs are below the tab control in the Z order. This causes crazy overdraw issues on first resizing. After adding the tab dialogs as childs to your main window, call SetWindowPos(tab, HWND_TOP, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE) to move them to the top of the Z order.
有这个确切的问题；我花了好几天才弄明白.我在 Visual Studio 中创建了一个简单的应用程序:
Had this exact issue; took me days to figure it out. I created a simple application in Visual Studio:
- 对 ComCtrl v 6 的清单引用
InitCommonControlsEx()- 带有标签控件的对话框
- 选项卡内容的子对话框(与选项卡同级)
- 在子对话框中，一个单选按钮和一个静态按钮
- 没有花哨的处理
WM_PRINTCLIENT或类似的东西 - 只需
EnableThemeDialogTexture()在子对话框的WM_INITDIALOG中
- manifest reference to ComCtrl v 6
InitCommonControlsEx()- a dialog with a tab control
- a sub-dialog for the tab content (sibling to the tab)
- in the sub-dialog, a radio button and a static
- no fancy handling of
WM_PRINTCLIENTor anything alike - just
EnableThemeDialogTexture()inWM_INITDIALOGof the sub-dialog
我在 XP 上检查了一下……它运行良好，看起来很漂亮，除了闪烁.
I went to check it on XP and … it worked perfect and looked beautiful, apart from flickering.
我添加了 WS_CLIPCHILDREN 并且突然能够完美地重现您的屏幕截图.我一开始以为是这个原因.
I added WS_CLIPCHILDREN and suddenly was able to reproduce your screenshots perfectly. I was first thinking this was the cause.
我一直推并添加了 WS_COMPOSITED 以防止闪烁，标签窗口突然消失了——完全被标签的背景覆盖了.现在我意识到 Z 顺序有问题.
I kept pushing and added WS_COMPOSITED to prevent flickering, and the tab window suddenly was gone – entirely covered by the tab’s background. Now I realized the Z order was at fault.
子窗口总是在 Z 顺序的底部创建，即在您的选项卡控件下方.您的代码永远不会将它们向上移动.选项卡仅由纯粹的运气/透支显示，产生您观察到的工件.修复 Z 顺序，就不会再有工件了.
Child windows are always created at the bottom of the Z order, i.e. below your tab control. Your code never moves them upwards. The tabs only ever displayed by pure luck/overdraw, producing the artifacts you observe. Fix the Z order and there will be no more artifacts.
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