mirror of
https://github.com/TigerVNC/tigervnc.git
synced 2024-08-21 17:54:34 +02:00
![Constantin Kaplinsky](/assets/img/avatar_default.png)
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
218 lines
5.8 KiB
C++
218 lines
5.8 KiB
C++
/* Copyright (C) 2002-2004 RealVNC Ltd. All Rights Reserved.
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This software is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this software; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
// -=- Win32Util.h
|
|
|
|
// Miscellaneous but useful Win32 API utility functions & classes.
|
|
// In particular, a set of classes which wrap GDI objects,
|
|
// and some to handle palettes.
|
|
|
|
#ifndef __RFB_WIN32_GDIUTIL_H__
|
|
#define __RFB_WIN32_GDIUTIL_H__
|
|
|
|
#include <rfb/ColourMap.h>
|
|
#include <rfb/PixelFormat.h>
|
|
#include <rfb/Rect.h>
|
|
#include <rfb_win32/TCharArray.h>
|
|
|
|
namespace rfb {
|
|
|
|
namespace win32 {
|
|
|
|
class LogicalPalette {
|
|
public:
|
|
LogicalPalette();
|
|
~LogicalPalette();
|
|
void setEntries(int start, int count, const Colour* cols);
|
|
HPALETTE getHandle() {return palette;}
|
|
protected:
|
|
HPALETTE palette;
|
|
int numEntries;
|
|
};
|
|
|
|
class DeviceContext {
|
|
public:
|
|
DeviceContext() : dc(0) {}
|
|
virtual ~DeviceContext() {}
|
|
operator HDC() const {return dc;}
|
|
PixelFormat getPF() const;
|
|
static PixelFormat getPF(HDC dc);
|
|
protected:
|
|
HDC dc;
|
|
};
|
|
|
|
class WindowDC : public DeviceContext {
|
|
public:
|
|
WindowDC(HWND wnd);
|
|
virtual ~WindowDC();
|
|
protected:
|
|
HWND hwnd;
|
|
};
|
|
|
|
class CompatibleDC : public DeviceContext {
|
|
public:
|
|
CompatibleDC(HDC existing);
|
|
virtual ~CompatibleDC();
|
|
};
|
|
|
|
class BitmapDC : public CompatibleDC {
|
|
public:
|
|
BitmapDC(HDC hdc, HBITMAP hbitmap);
|
|
~BitmapDC();
|
|
protected:
|
|
HBITMAP oldBitmap;
|
|
};
|
|
|
|
class CompatibleBitmap {
|
|
public:
|
|
CompatibleBitmap(HDC hdc, int width, int height);
|
|
virtual ~CompatibleBitmap();
|
|
operator HBITMAP() const {return hbmp;}
|
|
protected:
|
|
HBITMAP hbmp;
|
|
};
|
|
|
|
struct BitmapInfo {
|
|
BITMAPINFOHEADER bmiHeader;
|
|
union {
|
|
struct {
|
|
DWORD red;
|
|
DWORD green;
|
|
DWORD blue;
|
|
} mask;
|
|
RGBQUAD color[256];
|
|
};
|
|
};
|
|
|
|
inline void initMaxAndShift(DWORD mask, int* max, int* shift) {
|
|
for ((*shift) = 0; (mask & 1) == 0; (*shift)++) mask >>= 1;
|
|
(*max) = (rdr::U16)mask;
|
|
}
|
|
|
|
class PaletteSelector {
|
|
public:
|
|
PaletteSelector(HDC dc, HPALETTE pal);
|
|
~PaletteSelector();
|
|
bool isRedrawRequired() {return redrawRequired;}
|
|
protected:
|
|
HPALETTE oldPal;
|
|
HDC device;
|
|
bool redrawRequired;
|
|
};
|
|
|
|
struct IconInfo : public ICONINFO {
|
|
IconInfo(HICON icon);
|
|
~IconInfo();
|
|
};
|
|
|
|
struct ModuleFileName : public TCharArray {
|
|
ModuleFileName(HMODULE module=0);
|
|
};
|
|
|
|
struct FileVersionInfo : public TCharArray {
|
|
FileVersionInfo(const TCHAR* filename=0);
|
|
const TCHAR* getVerString(const TCHAR* name, DWORD langId = 0x080904b0);
|
|
};
|
|
|
|
bool splitPath(const TCHAR* path, TCHAR** dir, TCHAR** file);
|
|
|
|
class DynamicFnBase {
|
|
public:
|
|
DynamicFnBase(const TCHAR* dllName, const char* fnName);
|
|
~DynamicFnBase();
|
|
bool isValid() const {return fnPtr != 0;}
|
|
protected:
|
|
void* fnPtr;
|
|
HMODULE dllHandle;
|
|
};
|
|
|
|
template<class T> class DynamicFn : public DynamicFnBase {
|
|
public:
|
|
DynamicFn(const TCHAR* dllName, const char* fnName) : DynamicFnBase(dllName, fnName) {}
|
|
T operator *() const {return (T)fnPtr;};
|
|
};
|
|
|
|
// Structure containing info on the monitor nearest the window.
|
|
// Copes with multi-monitor OSes and older ones.
|
|
#if (WINVER >= 0x0500)
|
|
struct MonitorInfo : MONITORINFOEXA {
|
|
MonitorInfo(HWND hwnd);
|
|
};
|
|
#else
|
|
struct MonitorInfo {
|
|
MonitorInfo(HWND hwnd);
|
|
DWORD cbSize;
|
|
RECT rcMonitor;
|
|
RECT rcWork;
|
|
DWORD dwFlags;
|
|
char szDevice[1]; // Always null...
|
|
};
|
|
#endif
|
|
void moveToMonitor(HWND handle, const char* device);
|
|
|
|
class Handle {
|
|
public:
|
|
Handle(HANDLE h_=0) : h(h_) {}
|
|
~Handle() {
|
|
if (h) CloseHandle(h);
|
|
}
|
|
operator HANDLE() {return h;}
|
|
HANDLE h;
|
|
};
|
|
|
|
// Center the window to a rectangle, or to a parent window.
|
|
// Optionally, resize the window to lay within the rect or parent window
|
|
// If the parent window is NULL then the working area if the window's
|
|
// current monitor is used instead.
|
|
void centerWindow(HWND handle, const RECT& r, bool clipToRect=false);
|
|
void centerWindow(HWND handle, HWND parent, bool clipToRect=false);
|
|
|
|
// MsgBox helper function. Define rfb::win32::AppName somewhere in your
|
|
// code and MsgBox will use its value in informational messages.
|
|
extern TStr AppName;
|
|
int MsgBox(HWND parent, const TCHAR* message, UINT flags);
|
|
|
|
// Get the computer name
|
|
struct ComputerName : TCharArray {
|
|
ComputerName() : TCharArray(MAX_COMPUTERNAME_LENGTH+1) {
|
|
ULONG namelength = MAX_COMPUTERNAME_LENGTH+1;
|
|
if (!GetComputerName(buf, &namelength))
|
|
_tcscpy(buf, _T(""));
|
|
}
|
|
};
|
|
|
|
// Allocate and/or manage LocalAlloc memory.
|
|
struct LocalMem {
|
|
LocalMem(int size) : ptr(LocalAlloc(LMEM_FIXED, size)) {
|
|
if (!ptr) throw rdr::SystemException("LocalAlloc", GetLastError());
|
|
}
|
|
LocalMem(void* p) : ptr(p) {}
|
|
~LocalMem() {LocalFree(ptr);}
|
|
operator void*() {return ptr;}
|
|
void* takePtr() {
|
|
void* t = ptr; ptr = 0; return t;
|
|
}
|
|
void* ptr;
|
|
};
|
|
|
|
};
|
|
|
|
};
|
|
|
|
#endif
|