VC中如何获取窗口当前的背景颜色，具体用到什么函数

GetClassLong(hwnd,GCL_HBRBACKGROUND) 获得背景画刷

GetObject 根据背景画刷获取逻辑画刷

typedef struct tagLOGBRUSH {

UINT lbStyle;

COLORREF lbColor; //这里就是背景颜色

LONG lbHatch;

} LOGBRUSH,

或者用GetClassInfo 根据类名获取其WNDCLASS结构

typedef struct _WNDCLASS {

UINT style;

WNDPROC lpfnWndProc;

int cbClsExtra;

int cbWndExtra;

HINSTANCE hInstance;

HICON hIcon;

HCURSOR hCursor;

HBRUSH hbrBackground; //背景画刷

LPCTSTR lpszMenuName;

LPCTSTR lpszClassName;

} WNDCLASS, PWNDCLASS;

BITMAP bmp;

int bmp_width;

int bmp_height;

if(GetObject(hBmp,sizeof(BITMAP),(LPSTR)&bmp))

{

bmp_width=bmpbmWidth;

bmp_height=bmpbmHeight;

}

private

sub

command1_mousemove(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

command1mousepointer

=

vbcross

end

sub

private

sub

command1_mouseup(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

if

button

=

vbrightbutton

then

msgbox

"现在鼠标光标位于命令按钮中"

end

if

end

sub

private

sub

form_load()

'picture1mouseicon

=

loadpicture("c:\handcur")'光标文件的路径

end

sub

private

sub

form_mousemove(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

memousepointer

=

vbdefault

end

sub

private

sub

form_mouseup(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

if

button

=

vbrightbutton

then

msgbox

"现在鼠标光标位于窗体上"

end

if

end

sub

private

sub

picture1_mousemove(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

picture1mousepointer

=

vbcustom

end

sub

private

sub

picture1_mouseup(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

if

button

=

vbrightbutton

then

msgbox

"现在鼠标光标位于框中"

end

if

end

sub

private

sub

text1_mousemove(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

text1mousepointer

=

vbhourglass

end

sub

private

sub

text1_mouseup(button

as

integer,

shift

as

integer,

x

as

single,

y

as

single)

if

button

=

vbrightbutton

then

msgbox

"现在鼠标光标位于文本框中"

end

if

end

sub

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