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Resolved Need to capture images through webcam and store in DB
  1. Issue
0 Votes
  1. Sivaprakash BKR
  2. PowerBuilder
  3. Sunday, 1 July 2018 04:14 AM UTC

Hello,

I need to capture images using the attached webcam [ desktop, laptop, ...]  and store that image in a database.  Smaller image size is preferable.

Currently I got Logitech C-170.   

Any idea how to accomplish this task ?  Should work in PB 11.5 and /or PB 2017.

Happiness Always

BKR Sivaprakash

 

Update 1:   Tried using EZTW32.DLL.

Results for the following commands.

ll_ret = TWAIN_IsAvailable()                         // Returns 1
ll_ret = TWAIN_LoadSourceManager()         // Returns 1
ll_ret = TWAIN_OpenSourceManager(0)      // Returns 1
ll_ret = TWAIN_OpenDefaultSource()          // Returns 0
ll_Ret = TWAIN_EnableSource(0)               // Returns 0
 

ll_ret = TWAIN_AcquireToFilename(0, "c:\temp\result.bmp")  
pb_1.picturename='c:\temp\result.bmp'  

// Error
Unable to open default Data Source.
Source Manager operation failed.
RC:  TWRC_FAILURE
CC:  TWCC_NODS (No Data Source)

I plugged my webcam from the front size of the CPU.

This webcam works perfectly when tried with an Windev application.   

 

Update 2:  Using Windows 7 Ultimate SP1, 64-bit 

 

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