🚀 go-pugleaf

Hi remmurds 
 
 remmurds says:
> 
> But however the icon which i get is only 32*32 pixels, not the original
> 48*48, How do I get it?

According to the help file:
SHGFI_ICON
Retrieves the handle of the icon that represents the file 
and the index of the icon within the system image list. 
The **handle** is copied to the **hIcon** member of the 
structure specified by psfi, and the index is copied to 
the iIcon member. 
The return value is the handle of the system image list.

It looks like You have to deal with the hIcon handle

and then use the:

DrawIconEx(
    HDC hdc,	// handle to device context
    int xLeft,	// x-coordinate of upper left corner
    int yTop,	// y-coordinate of upper left corner
    HICON hIcon,	// handle to icon to draw
    int cxWidth,	// width of the icon
    int cyWidth,	// height of the icon
    UINT istepIfAniCur,	// index of frame in animated cursor
    HBRUSH hbrFlickerFreeDraw,	// handle to background brush
    UINT diFlags	// icon-drawing flags
   );

To draw the Icon.

Let me know if it works, I haven't tryed it.

Kind regards
Asger

Thank you for your response :)

I try to use this function to get the icon:


SHGetFileInfo(FileName.c_str(), 0, &info, sizeof(info), SHGFI_LARGEICON | 
SHGFI_SYSICONINDEX);
DrawIconEx(ImageIco->Canvas->Handle, 0, 0, info.hIcon, 48, 48, 0, 0, 
DI_NORMAL | DI_COMPAT);


But it doesn't work.
Do I use it with incorrect parameters?


"Asger Joergensen" <junk@Asger-P.dk> ���g��l��s�D:MPG.21bd0b1963f2bda698992f@newsgroups.borland.com...
>
> Hi remmurds
>
> remmurds says:
>>
>> But however the icon which i get is only 32*32 pixels, not the original
>> 48*48, How do I get it?
>
> According to the help file:
> SHGFI_ICON
> Retrieves the handle of the icon that represents the file
> and the index of the icon within the system image list.
> The **handle** is copied to the **hIcon** member of the
> structure specified by psfi, and the index is copied to
> the iIcon member.
> The return value is the handle of the system image list.
>
> It looks like You have to deal with the hIcon handle
>
> and then use the:
>
> DrawIconEx(
>    HDC hdc, // handle to device context
>    int xLeft, // x-coordinate of upper left corner
>    int yTop, // y-coordinate of upper left corner
>    HICON hIcon, // handle to icon to draw
>    int cxWidth, // width of the icon
>    int cyWidth, // height of the icon
>    UINT istepIfAniCur, // index of frame in animated cursor
>    HBRUSH hbrFlickerFreeDraw, // handle to background brush
>    UINT diFlags // icon-drawing flags
>   );
>
> To draw the Icon.
>
> Let me know if it works, I haven't tryed it.
>
> Kind regards
> Asger 

Hi remmurds 
 
 remmurds says:
> Thank you for your response :)
> 
> I try to use this function to get the icon:
> 
> 
> SHGetFileInfo(FileName.c_str(), 0, &info, sizeof(info), SHGFI_LARGEICON | 
> SHGFI_SYSICONINDEX);
> DrawIconEx(ImageIco->Canvas->Handle, 0, 0, info.hIcon, 48, 48, 0, 0, 
> DI_NORMAL | DI_COMPAT);
> 
> 
> But it doesn't work.
> Do I use it with incorrect parameters?

Do You check if the the handle is different from NULL ?

According to the helpfile SHGFI_ICON is the one
that will retrieve the handle to the icon the other
SHGFI_LARGEICON go for a specific size and You don't 
need the index.

This would be my suggestion: 

DWORD Res = SHGetFileInfo(FileName.c_str(), 0, &info, sizeof(info), SHGFI_ICON);

if( ! Res){// GetLastError}

if(info.hIcon)
{

if( ! DrawIconEx(ImageIco->Canvas->Handle, 0, 0, info.hIcon, 48, 48, 0, 0, 
DI_NORMAL) )
{// GetLastError}
}

by the way what is ImageIco ?
is it a TImage ?
Have You remembered to set the size of ImageIco ?

Kind regards
Asger

"Asger Joergensen" <junk@Asger-P.dk> ���g��l��s�D:MPG.21bd27055e96426f989930@newsgroups.borland.com...
>
> Hi remmurds
>
> Do You check if the the handle is different from NULL ?
>
> According to the helpfile SHGFI_ICON is the one
> that will retrieve the handle to the icon the other
> SHGFI_LARGEICON go for a specific size and You don't
> need the index.
>
> This would be my suggestion:
>
> DWORD Res = SHGetFileInfo(FileName.c_str(), 0, &info, sizeof(info), 
> SHGFI_ICON);
>
> if( ! Res){// GetLastError}
>
> if(info.hIcon)
> {
>
> if( ! DrawIconEx(ImageIco->Canvas->Handle, 0, 0, info.hIcon, 48, 48, 0, 0,
> DI_NORMAL) )
> {// GetLastError}
> }
>
> by the way what is ImageIco ?
> is it a TImage ?
> Have You remembered to set the size of ImageIco ?
>
> Kind regards
> Asger

Oh, sorry about that.
I forgot to explain that ImageIco is a TImage component :)
The size of ImageIcon is 48*48, the "Transparent" and "Stretch" property is 
false;
Now I can draw the icon with this codes:


SHGetFileInfo(FileName.c_str(), 0, &info, sizeof(info), SHGFI_ICON);

DrawIconEx(ImageIco->Canvas->Handle, 0, 0, info.hIcon, 48, 48, 0, 0, 
DI_NORMAL);


Mmm...but it looks like a smaller picture "zoom out" to 48*48 with "Mosaic", 
even the original icon is 48*48(I made it for testing).
I will keep trying. Thank you for your suggestion : ) 

Hi remmurds 
 
I just came to think that this might not be the right 
function for what You want to do.
SHGetFileInfo is as far as I know used when You want 
to retrieve systeminformation about a file ant it is 
therefor the function retrieves the information You 
can see in Your explorer.
In other words if Your system shows 32x32 icons that
is what You get when You call SHGetFileInfo.

If you want to draw an Icon then You have to load the 
actual Icon either from resource or from file.

***  I think  **** ;-)

Kind regards
Asger

"Asger Joergensen" <junk@Asger-P.dk> wrote in message
news:MPG.21bd0b1963f2bda698992f@newsgroups.borland.com...

> It looks like You have to deal with the hIcon handle
>
> and then use the:
>
> DrawIconEx(

You don't need DrawIconEx().  Simply assign to the returned HICON to TIcon's
Handle property instead.

    SHFILEINFO info;
    if( SHGetFileInfo(FileName.c_str(), 0, &info, sizeof(info), SHGFI_ICON |
SHGFI_LARGEICON) )
        ImageIco->Picture->Icon->Handle = info.hIcon;


Gambit

Hi Remy
 
 Remy Lebeau (TeamB) says:
> 
> "Asger Joergensen" <junk@Asger-P.dk> wrote in message
> news:MPG.21bd0b1963f2bda698992f@newsgroups.borland.com...
> 
> > It looks like You have to deal with the hIcon handle
> >
> > and then use the:
> >
> > DrawIconEx(
> 
> You don't need DrawIconEx().  Simply assign to the returned HICON to TIcon's
> Handle property instead.
> 
>     SHFILEINFO info;
>     if( SHGetFileInfo(FileName.c_str(), 0, &info, sizeof(info), SHGFI_ICON |
> SHGFI_LARGEICON) )
>         ImageIco->Picture->Icon->Handle = info.hIcon;

Yea, I know I can do that, but we were trying to 
get the Icon in 48x48 and not 32x32, so by not
specifying SHGFI_LARGEICON, I was hoping for a handle
to an Icon containing all the sizes.;-)

But as I mention in my last post, I don't think this 
is the way if the system is showing 32x32 icons.
Never got a reply on that one.

Kind regards
Asger

"Asger Joergensen" <junk@Asger-P.dk> wrote in message
news:MPG.21beac6b19b49f6b989934@newsgroups.borland.com...

> Yea, I know I can do that, but we were trying
> to get the Icon in 48x48 and not 32x32

SHGetFileInfo() does not support that icon size.  Use LoadImage() instead.

> by not specifying SHGFI_LARGEICON, I was hoping
> for a handle to an Icon containing all the sizes.;-)

That is not how SHGetFileInfo() works.


Gambit