问题描述
您好,
几个星期以来,我们试图将MFC对话框转换为可以嵌入到WinForm用户控件中的 MFC表单 。
Since a few weeks, we are trying to "transform" a MFC dialog into a "MFC form" which can be embedded into a WinForm User Control.
我们成功做到了:
- 我们制作了WinForm用户控件,称为 Dlg_WU_MFC_Container
- 创建后,UC会创建名为 CDlgEdgeType
- 然后,每次调整UC大小或移动UC时,我们也会移动并调整MFC表单的大小
下面是代码(试图删除很多不必要的东西..):
Here is the code (I tried to remove a lot of unnecessary stuff..):
Dlg_WU_MFC_Container.h:
Dlg_WU_MFC_Container.h:
#pragma once
public ref class Dlg_WU_MFC_Container : public System::Windows::Forms::UserControl
{
private:
CDlgEdgeType* _dialog;
CWnd *_wnd;
private: //---Local Controls
System::ComponentModel::IContainer^ components;
public:
Dlg_WU_MFC_Container();
~Dlg_WU_MFC_Container();
!Dlg_WU_MFC_Container();
template<class T, class HP>
void InitializeContainer() {
CDlgEdgeType =
}
private:
void RefreshEmbeddedSize();
#pragma region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
void InitializeComponent(void)
{
this->SuspendLayout();
//
// Dlg_WU_MFC_Container
//
this->AutoScaleDimensions = System::Drawing::SizeF(96, 96);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Dpi;
this->ForeColor = System::Drawing::SystemColors::WindowText;
this->Margin = System::Windows::Forms::Padding(0);
this->Name = L"Dlg_WU_MFC_Container";
this->Size = System::Drawing::Size(816, 480);
this->SizeChanged += gcnew System::EventHandler(this, &Dlg_WU_MFC_Container::evSizeChanged);
this->VisibleChanged += gcnew System::EventHandler(this, &Dlg_WU_MFC_Container::evVisibleChanged);
this->ResumeLayout(false);
}
#pragma endregion
private: System::Void evSizeChanged(System::Object^ sender, System::EventArgs^ e);
private: System::Void evVisibleChanged(System::Object^ sender, System::EventArgs^ e);
};
Dlg_WU_MFC_Container.cpp:
Dlg_WU_MFC_Container.cpp:
#include "Dlg_WU_MFC_Container.h"
#include "DlgEdgeType.h"
Dlg_WU_MFC_Container::Dlg_WU_MFC_Container()
{
InitializeComponent();
_wnd = NULL;
_dialog = new CDlgEdgeType();
}
Dlg_WU_MFC_Container::~Dlg_WU_MFC_Container()
{
if (components)
{
delete components;
}
this->!Dlg_WU_MFC_Container();
}
Dlg_WU_MFC_Container::!Dlg_WU_MFC_Container()
{
// We need to detach the handle to free it for other usage
if (_wnd) {
_wnd->Detach();
delete _wnd;
_wnd = NULL;
}
if (_dialog) {
delete _dialog;
_dialog = NULL;
}
}
System::Void Dlg_WU_MFC_Container::evSizeChanged(System::Object^ sender, System::EventArgs^ e) {
RefreshEmbeddedSize();
}
// Inform the embedded form to adapt to its new size
void Dlg_WU_MFC_Container::RefreshEmbeddedSize() {
if (_dialog && _isShown) {
CRect containerWnd;
containerWnd.left = this->Left;
containerWnd.right = this->Right;
containerWnd.top = this->Top;
containerWnd.bottom = this->Bottom;
_dialog->ReplaceEmbeddedForm(containerWnd);
}
}
System::Void Dlg_WU_MFC_Container::evVisibleChanged(System::Object^ sender, System::EventArgs^ e) {
// _isShown basically useless.. !
if (Visible != _isShown) {
_isShown = Visible;
if (_dialog) {
if (Visible) {
void *handle = Handle.ToPointer();
if (handle) {
// We need to create a new CWnd which will contain
// the handle of the current WinForm control where
// the embedded MFC will be contained
_wnd = new CWnd();
_wnd->Attach((HWND)handle);
_dialog->Create(_wnd);
RefreshEmbeddedSize();
}
} else {
// When the control is not shown anymore, we need to free
// the handle so another control can use it (the handle
// is stored in the MFC permanent map)
_wnd->Detach();
_dialog->DestroyWindow();
delete _wnd;
_wnd = NULL;
}
}
}
}
CDlgEdgeType .cpp:
CDlgEdgeType.cpp:
void CDlgEdgeType::ReplaceEmbeddedForm(CRect &rect) {
if (!GetSafeHwnd()) {
return;
}
SetWindowPos(NULL, rect.left, rect.top, rect.Width(), rect.Height(), SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER);
}
这些东西很棒: CDlgEdgeType 可以很好地显示在我们的应用程序中,并且在调整应用程序大小或移动应用程序时,一切正常。
This stuff is working "great" : CDlgEdgeType is well shown in our application and when the application is resized or moved, everything goes well.
这是我的问题:
CDlgEdgeType 具有 Dlg_WU_MFC_Container 作为父级,太好了。但是后者不知道MFC表单是子级 ..因此焦点有点丢失,箭头键和Tab键根本不起作用。
Here is my issue:CDlgEdgeType has Dlg_WU_MFC_Container as parent, great. But the latter doesn't know that the MFC form is a "child".. so the focus is kind of lost and the Arrow keys and the Tab keys simply do not work.
您应该知道的是,已将 Dlg_WU_MFC_Container 添加到自定义 TabControl 的 TabPages 中。因此,如果用户尝试通过MFC窗体的控件进行导航,或者他尝试使用方向键通过TreeView进行导航,则TabControl似乎将接管焦点并更改选项卡。.这不方便D:
A thing you should know is that Dlg_WU_MFC_Container is added to TabPages of a custom TabControl. So, if the user tries to navigate through MFC form's controls or he tries to navigate through a TreeView with the Arrow keys, the TabControl seems to take over the focus and will change tab.. which is not convenient D:
我也不知道如何解决这个问题,我的同事们也不知道。
I have no idea how to solve that issue, neither my colleagues.
也许我们集成MFC的方式是错误的,但是没有真正的话题(我们看到更多将WinForm表单嵌入MFC)。另外,由于我们的软件历史悠久,因此我们不能简单地重新创建CDlgEdgeType。这是一个很大的对话框,实际上,我们有7个这样的对话框,代码实现了模板,但是为了清楚起见,我删除了它们。.
Maybe the way we integrate the MFC is wrong, but there are no really topics about that (we see more "Embedding WinForm forms into MFC"..). Also, as our software has a big history, we cannot simply recreate CDlgEdgeType. It's a big dialog and, in fact, we have 7 dialogs like that, the code implements template but I removed them for the clarity of this message..
谢谢!
Sbizz。
推荐答案
好吧,我们找到了出路。
Well, we find a way out.. this may not be the best way to do it, but it is working (or at least, it seems to work !).
起初,我已经设法做到这一点。将键发送到MFC表单:
At first, I've managed to send the keys to the MFC form:
bool Dlg_WU_MFC_Container::ProcessDialogKey(Keys keyData) {
::SendMessage(CWnd::GetFocus()->GetSafeHwnd(), WM_KEYDOWN, (WPARAM)keyData, (LPARAM)0);
return true;
}
由于TabControl正在通过WM_ACTIVATE进行控制,因此我们试图覆盖,同时将WM_ACTIVATE发送到MFC表单,因此结果如下:
Since the TabControl is taking the control through an WM_ACTIVATE, we tried to "override" it by sending also WM_ACTIVATE to the MFC form, so the result is the following:
bool Dlg_WU_MFC_Container::ProcessDialogKey(Keys keyData) {
::SendMessage(CWnd::GetFocus()->GetSafeHwnd(), WM_ACTIVATE, MAKEWPARAM(WA_ACTIVE, 0), (LPARAM)0);
::SendMessage(CWnd::GetFocus()->GetSafeHwnd(), WM_KEYDOWN, (WPARAM)keyData, (LPARAM)0);
return true;
}
唯一的问题是 Tab键似乎不起作用但是经过调查,我们的用户并不需要它,所以...:D但是我认为它仅与WM_ACTIVATE(先前的控件)的第三个参数有关。必须使用它来知道在按下Tab后必须聚焦哪个控件。
The only thing is that the "Tab" key doesn't seems to work but after investigation, it is not needed by our users, so... :D But I think it's just related to the third parameter of WM_ACTIVATE (previous control). It must be used to know which control must be focused after Tab is pressed.
Sbizz
这篇关于C ++ / CLI:将MFC嵌入WinForm的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!