LISTVIEW NMCUSTOMDRAW

[Grincheux]

I am writting a new version of my small viewer program. In the previous version I used an ownerdraw listbox and there
were no problem. Today I decided to use a listview.

The problem I have is that I cannot get the drawing rectangle for each item.

Please help me.

Here is the source code.

Code Select Expand


; ================================================================================

RightImages_WmNotify PROC USES EBX EDI ESI,__hWnd:HWND,__dwControlId:DWord,__lpNmHdr:Ptr NMHDR
LOCAL _lpNmLvCustomDraw:Ptr NMLVCUSTOMDRAW
LOCAL _rc:RECT

cmp __dwControlId,IDC_LISTVIEW_01
jne @Exit

mov ebx,__lpNmHdr

cmp (NMHDR Ptr [ebx]).code,NM_CUSTOMDRAW
jne @Exit

mov _lpNmLvCustomDraw,ebx
mov eax,(NMLVCUSTOMDRAW Ptr [ebx]).nmcd.dwDrawStage

cmp eax,CDDS_PREPAINT
jne @NextMsg

mov eax,CDRF_NOTIFYITEMDRAW 
jmp @Exit

@NextMsg :

cmp eax,CDDS_ITEMPREPAINT
jne @NextMsg_1

@NextMsg_0 :

INVOKE GFL_ResizeImageFromFile,(NMLVCUSTOMDRAW Ptr [ebx]).nmcd.lItemlParam,dwDiapo_Width,dwDiapo_Height
jz @EndDraw

mov edi,eax
mov _rc.left,LVIR_ICON

INVOKE SendMessage,hRightListView,LVM_GETSUBITEMRECT,(NMLVCUSTOMDRAW Ptr [ebx]).iSubItem,ADDR _rc

mov esi,(NMLVCUSTOMDRAW Ptr [ebx]).nmcd.hdc

INVOKE SetStretchBltMode,esi,HALFTONE

mov edx,(IMAGE_INFOS Ptr [edi]).Image.biWidth
mov ecx,(IMAGE_INFOS Ptr [edi]).Image.biHeight

INVOKE StretchDIBits,esi,_rc.left,_rc.top,edx,ecx,0,0,edx,ecx,(IMAGE_INFOS Ptr [edi]).lpImageBits,ADDR (IMAGE_INFOS Ptr [edi]).Image,DIB_RGB_COLORS,SRCCOPY

INVOKE M_Free,edi

@EndDraw :

mov eax,CDRF_NEWFONT
jmp @Exit

@NextMsg_1 :

cmp eax,CDDS_SUBITEM or CDDS_ITEMPREPAINT
je @NextMsg_0

@End :

mov eax,CDRF_DODEFAULT

@Exit :

ret
RightImages_WmNotify ENDP

; ================================================================================



[six_L]

Hey,Grincheux
searching "doodle" on this forum, the CustomDraw rectangle is about rightmenu.

what's the effect which you'll design?

[Grincheux]

Thank you 6L for your help, but now this problem is solved.
I have an other one. I don't receive any message to the listview.
I would like to draw something just behind the imae shown.

I have tried a lot of ideas by none is good.

Could you help me.

You can find the whole project at http://www.idcat39.com/download/IV3.zip

Bye

[xandaz]

   I kinda get the idea that NMLVCUSTOMDRAW doesnt do much for those purposes and its better to use LVS_OWNERDRAWFIXED right? What can you do really in NMCUSTOMDRAW? change the fonts? doesn't seem to do much. I was trying to do the item drawing myself but the strucutures are low in info.... Bye and laters