How to open video files using mci

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Dont know how to open video files,this is my code:

-for importing dll:

C#

[DllImport("winmm.dll")]
private static extern long mciSendString(
    string command,
    StringBuilder returnValue,
    int returnLength,
    IntPtr winHandle);

-for oppening video file:

C#

mciSendString("open \"" + fileName + "\" type mpegvideo alias mf style child parent " + this.VideoOutput, null, 0, IntPtr.Zero);

VideoOutput = PictureBox1.Handle.ToString()
Code works if i try building a new application,but doesn't work in my old app(code worked before)
Please help,I really need this

Posted 27-Jan-12 11:34am

mmm3743

Updated 28-Jan-12 0:32am

v3

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Amir Mahfoozi 28-Jan-12 6:54am

Winform ? WPF ?

3 solutions

Solution 2

hi,

try to check following links:

http://social.msdn.microsoft.com/Forums/en-US/gametechnologiesaudioxact/thread/c6b79853-07c2-4382-9826-6932b958142b/[^]
http://stackoverflow.com/questions/733324/help-with-mci-video-window[^]
Simple MCI Player[^]

regards
robert

Posted 27-Jan-12 21:15pm

Kanasz Robert

Solution 1

I really don't think you quite understand this yet, do you?
Your command string sent to the mci device will evaluate to something along teh lines of:

open D:\Temp\myVideo.mp4 type mpegvideo alias mf style child parent System.Windows.Forms.PictureBox, SizeMode: Normal

since PictureBox.ToString generates

System.Windows.Forms.PictureBox, SizeMode: Normal

Whereas according to MSDN[^] the parent should be a handle to a window. You could try using this.VideoOutput.Handle, as it might give a slightly better result, but I haven't tried it, and don't know if it will work.

Posted 27-Jan-12 20:21pm

OriginalGriff

Comments

mmm3743 28-Jan-12 6:30am

Sorry,I fixed the question,I already used Picturebox1.Handle.ToString(),but for some reason my old app doesn't work anymore

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mmm3743 · Accepted Answer · 2012-02-10T10:03:00

Solution 3

I created a new project because i couldn't find an awnser why did my old project stopped working,i use same code and it works fine now

Posted 10-Feb-12 10:03am

mmm3743

Updated 11-Feb-12 9:09am

v2