win32/LgiOsClasses.h

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#ifndef __OS_CLASS_H
#define __OS_CLASS_H

class LgiClass OsApplication
{
protected:
    HCURSOR hNormalCursor;

public:
    OsApplication()
    {
        hNormalCursor = 0;
    }
};

// Win32 Memory Handler
class LgiClass GMem {

    int64 Size;
    HGLOBAL hMem;
    void *pMem;

public:
    GMem(int64 size)
    {
        Size = size;
        hMem = GlobalAlloc(GMEM_FIXED, (DWORD)Size);
        pMem = 0;
    }

    GMem(HGLOBAL hmem)
    {
        hMem = hmem;
        Size = GlobalSize(hMem);
        pMem = 0;
    }

    ~GMem()
    {
        if (pMem)
        {
            GlobalUnlock(hMem);
            pMem = 0;
        }
        if (hMem)
        {
            GlobalFree(hMem);
            hMem = 0;
        }
    }

    void *Lock()
    {
        return pMem = GlobalLock(hMem);
    }

    void UnLock()
    {
        if (pMem)
        {
            GlobalUnlock(hMem);
            pMem = 0;
        }
    }

    int64 GetSize()
    {
        return Size;
    }

    void Detach()
    {
        if (pMem)
        {
            GlobalUnlock(hMem);
            pMem = 0;
        }
        hMem = 0;
        Size = 0;
    }

    HGLOBAL Handle() { return hMem; }
};

// Win32 window class
class LgiClass GWin32Class : public GObject
{
    friend class GControl;
    friend class GApp;

    WNDPROC ParentProc;

#ifdef __GNUC__
public:
#endif
    static LRESULT CALLBACK Redir(OsView hWnd, UINT m, WPARAM a, LPARAM b);
    static LRESULT CALLBACK SubClassRedir(OsView hWnd, UINT m, WPARAM a, LPARAM b);

public:
    union
    {
        WNDCLASSA a;
        WNDCLASSW w;
    } Class;

    GWin32Class(char *Name);
    ~GWin32Class();

    bool Register();
    bool SubClass(char *Parent);
    LRESULT CALLBACK CallParent(OsView hWnd, UINT m, WPARAM a, LPARAM b);

    static GWin32Class *Create(char *ClassName);
};

#include "GContainers.h"
class LgiClass GRegKey
{
    HKEY k, Root;
    char s[256];
    char *KeyName;

public:
    GRegKey
    (
        char *Key,
        ...
    );
    ~GRegKey();

    bool IsOk();
    bool Create();
    char *Name();

    char *GetStr
    (
        char *Name = 0
    );
    bool SetStr(char *Name, char *Value);
    int GetInt(char *Name = 0);
    bool SetInt(char *Name, int Value);
    bool GetBinary(char *Name, void *&Ptr, int &Len);
    bool SetBinary(char *Name, void *Ptr, int Len);
    bool DeleteValue(char *Name = 0);
    bool DeleteKey();

    bool GetKeyNames(List<char> &n);
    bool GetValueNames(List<char> &n);
};

#endif

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