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make WinStruct<> available in non-GUI code too

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35667 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2005-09-24 23:08:53 +00:00
parent 976abb72fc
commit d1e4a8182e
1 changed files with 16 additions and 16 deletions
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32
include/wx/msw/private.h
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@@ -192,6 +192,22 @@ protected:
HANDLE m_handle; HANDLE m_handle;
}; };
// a template to make initializing Windows styructs less painful: it zeroes all
// the struct fields and also sets cbSize member to the correct value (and so
// can be only used with structures which have this member...)
template <class T>
struct WinStruct : public T
{
WinStruct()
{
::ZeroMemory(this, sizeof(T));
// explicit qualification is required here for this to be valid C++
this->cbSize = sizeof(T);
}
};
#if wxUSE_GUI #if wxUSE_GUI
#include <wx/gdicmn.h> #include <wx/gdicmn.h>
@@ -342,22 +358,6 @@ inline RECT wxGetClientRect(HWND hwnd)
// small helper classes // small helper classes
// --------------------------------------------------------------------------- // ---------------------------------------------------------------------------
// a template to make initializing Windows styructs less painful: it zeroes all
// the struct fields and also sets cbSize member to the correct value (and so
// can be only used with structures which have this member...)
template <class T>
struct WinStruct : public T
{
WinStruct()
{
::ZeroMemory(this, sizeof(T));
// explicit qualification is required here for this to be valid C++
this->cbSize = sizeof(T);
}
};
// create an instance of this class and use it as the HDC for screen, will // create an instance of this class and use it as the HDC for screen, will
// automatically release the DC going out of scope // automatically release the DC going out of scope
class ScreenHDC class ScreenHDC