Tcl

QuickGetBd Example

The QuickGetBd method is called to send a GET request to download a binary target, such as PDF, zip, image file, etc. into a Chilkat BinData object. Tcl

load ./chilkat.dll

set success 0

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

set http [new_CkHttp]

CkHttp_put_KeepResponseBody $http 1

set bd [new_CkBinData]

# Download the contents of a PDF file into the bd object.
set success [CkHttp_QuickGetBd $http "https://www.chilkatsoft.com/hello.pdf" $bd]
if {$success == 0} then {
    # This will happen if the response status code was 400 or greater,
    # or if the request could not be sent, or if no response was received.
    # 
    # In other words, success will only be 1 if bd contains the desired content at the URL (not an error response).
    set statusCode [CkHttp_get_LastStatus $http]
    puts "Response status: $statusCode"

    if {$statusCode == 0} then {
        # There was an error in communications.  
        puts [CkHttp_lastErrorText $http]
    }     else {
        # We received a response status code indicating failure.
        # Examine the response body.
        puts [CkHttp_lastResponseBody $http]
    }

    delete_CkHttp $http
    delete_CkBinData $bd
    exit
}

# Load the downloaded PDF into a Chilkat PDF object.
set pdf [new_CkPdf]

set success [CkPdf_LoadBd $pdf $bd]
if {$success == 0} then {
    puts [CkPdf_lastErrorText $pdf]
    delete_CkHttp $http
    delete_CkBinData $bd
    delete_CkPdf $pdf
    exit
}

# ...

puts "Success."

delete_CkHttp $http
delete_CkBinData $bd
delete_CkPdf $pdf