hDC Problem

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2 total messages Started by haihandsome Wed, 22 Jul 1998 00:00

#631

Author: haihandsome
Date: Wed, 22 Jul 1998 00:00

19 lines
1224 bytes

I Want to know a difference between type 1 & 2 ?? Why it difference ??
(I want to load bmp file to DC without load it to picture box)

Type 1 ...
Set picTemp.Picture = LoadPicture(FileName)
hdcX = CreateCompatibleDC(0&)
bmpX = CreateBitmap(Width, Height, cPlanes, cPixelBits, 0)
oldX = SelectObject(hdcX, bmpX)
BitBlt hdcX, 0, 0, Width, Height, picTemp.hdc, 0, 0, vbSrcCopy
Type 2 ...
Dim p As New StdPicture
Set p = LoadPicture(FileName)
hdcX = CreateCompatibleDC(0&)
oldX = SelectObject(hdcX, p.Handle)



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Re: hDC Problem

#648

Author: Jia H
Date: Fri, 24 Jul 1998 00:00

26 lines
1444 bytes

For 1:    You create a new bitmap (bmpX) and connect it with the hdcX, after
use it you need disconnect it and release the object.
For 2:    You connect an exist bitmap (p) with the hdcX, after use it you
only need disconnect it.

haihandsome@my-dejanews.com wrote in message
<6p5bb8$8a7$1@nnrp1.dejanews.com>...
>I Want to know a difference between type 1 & 2 ?? Why it difference ??
>(I want to load bmp file to DC without load it to picture box)
>
>Type 1 ...
>Set picTemp.Picture = LoadPicture(FileName)
>hdcX = CreateCompatibleDC(0&)
>bmpX = CreateBitmap(Width, Height, cPlanes, cPixelBits, 0)
>oldX = SelectObject(hdcX, bmpX)
>BitBlt hdcX, 0, 0, Width, Height, picTemp.hdc, 0, 0, vbSrcCopy
>Type 2 ...
>Dim p As New StdPicture
>Set p = LoadPicture(FileName)
>hdcX = CreateCompatibleDC(0&)
>oldX = SelectObject(hdcX, p.Handle)
>
>
>
>-----== Posted via Deja News, The Leader in Internet Discussion ==-----
>http://www.dejanews.com/rg_mkgrp.xp   Create Your Own Free Member Forum

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