您好,
几个星期以来,我们正在尝试将MFC对话框“转换”为“MFC格式”,可以嵌入到WinForm用户控件中。
我们已经成功地做到了:
这是代码(我试图删除许多不必要的东西..):
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:
#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:
void CDlgEdgeType::ReplaceEmbeddedForm(CRect &rect) {
if (!GetSafeHwnd()) {
return;
}
SetWindowPos(NULL, rect.left, rect.top, rect.Width(), rect.Height(), SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER);
}
这个东西工作“很棒”: CDlgEdgeType 在我们的应用程序中得到很好的显示,当应用程序调整大小或移动时,一切顺利。
这是我的问题: CDlgEdgeType 将 Dlg_WU_MFC_Container 作为父级,很棒。但是后者并不知道MFC表单是一个“孩子”..所以焦点有点丢失,箭头键和Tab键根本不起作用。
您应该知道的是, Dlg_WU_MFC_Container 会添加到自定义 TabControl 的 TabPages 中。因此,如果用户尝试浏览MFC表单的控件或他尝试使用箭头键浏览TreeView,TabControl似乎接管焦点并将更改选项卡..这不方便D:
我不知道如何解决这个问题,我的同事也不知道。
也许我们整合MFC的方式是错误的,但是没有真正的主题(我们看到更多“将WinForm表单嵌入到MFC中”)。此外,由于我们的软件历史悠久,我们不能简单地重新创建CDlgEdgeType。这是一个很大的对话框,事实上,我们有7个对话框,代码实现了模板,但是为了清晰起见,我删除了它们。
谢谢!
Sbizz。
答案 0 :(得分:1)
好吧,我们找到了一条出路...这可能不是最好的方法,但它正在发挥作用(或者至少它似乎有效!)。
首先,我设法将密钥发送到MFC表单:
bool Dlg_WU_MFC_Container::ProcessDialogKey(Keys keyData) {
::SendMessage(CWnd::GetFocus()->GetSafeHwnd(), WM_KEYDOWN, (WPARAM)keyData, (LPARAM)0);
return true;
}
由于TabControl通过WM_ACTIVATE获取控件,我们尝试通过将WM_ACTIVATE也发送到MFC表单来“覆盖”它,结果如下:
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,但经过调查后,我们的用户不需要它,所以......:D但我认为它只与WM_ACTIVATE的第三个参数有关(以前的控制)。必须使用它来知道在按下Tab后必须聚焦哪个控件。
Sbizz